D575469
日期：2020-9-10
MP277报警显示：区域指针类型时间日常期PLC地址错误！S7-300 314C-2DP PLC停止运行！请问高手是哪里出错了？
答：可以在PLC里面的模块信息里面查看故障提示
用S7-200PLC收集一脉冲，脉冲频率200ms发送28个脉冲，程序最小扫锚周期175ms，用普通计数器CTU和INC计数结果偏小，用高速计数器结果偏高，脉冲输入点i0.0，请高手指点
答：首先对于这种频率较高的脉冲（约140Hz），脉冲宽度约7ms，对于你的扫描周期大于175ms的PLC程序，用普通计数器肯定不行，必须用高速计数器，而且脉冲不能接到PLC的普通输入模块的输入点I*.*，这种模块的输入信号是必须经过过程映像的，每个程序循环周期才刷新一次，达不到要求的，该脉冲信号必须直接接到高速计数器（硬件中断输入模块的输入端），才能准确计数。
一、功能介绍
伟创AC60系列变频器内置国际标准的MODBUS（从站）通信协议，配合RS485通信模块，可非常方便的实现远程通讯控制功能。
二、S7-200的自由口通信模式说明
S7-200系列PLC有一种特殊的通信模式：自由口通信模式。在这种通信模式下。用户可以在自定义的通信协议（可以在用户程序中控制通信参数：选择通信协议、设定波特率、设定校验方式、设定字符的有效数据位）下，通过建立通信中断事件，使用通信指令，控制PLC的串行通信口与其它设备进行通信。只有当CPU主机处于RUN工作方式下（此时特殊继电器SM0.7为1）才允许自由通信模式,此时S7-200失去了与标准通信装置进行正常通信的功能。当CPU主机处于STOP工作方式下时，自由通信模式被禁止，PLC的通信协议由自由通信协议自动切换到正常的PPI通信协议。
三、下面以西门子S7-200系列PLC为例，介绍PLC与变频器建立通讯并实现对变频器起停、频率给定、监控、发送广播指令等功能的控制。
变频器作为MODBUS协议从站接收来自CPU226 PLC的通信指令。
一、 变频器在与CPU226通信前须做好以下准备工作：
1．确认已安装好AC60系列485通信模块；
2．用一根带9针阳性插头的串口通信电缆连接在CPU226 PLC的自由通信口端（PORT0或PORT1），电缆另一端的第3、8线分别接在CHV变频器A+、B-端子上；
3．预先设置变频器以下参数：
H-66=0//变频器设为从站
H-67=1 //变频器通讯地址为1
H-69=3 //通讯波特率9.6K
H-68=1 //（E、8、1）//通讯数据偶校验
E-01=2 //变频器的运行采用通讯方式
E-02=6 //变频器的给定频率设定采用通讯方式
二．PLC内存使用说明
西门子S7-200系列PLC的自由通讯端口编程必定会用到两个指令，即XMT（发送）指令和RCV（接收）指令。编写程序时需要为这两个指令指定数据缓冲区，一般以最低位数为0的地址作为数据缓冲区的起始地址。
1．发送指令XMT缓冲区（写/读）
VB100 //xmt指令要发送的字节个数
VB101 //变频器通讯地址（01）
VB102 //modbus功能码（06/03）
VB103 //变频器被写地址高位/变频器被读起始地址高位
VB104 //变频器被写地址低位/变频器被读起始地址低位
VB105 //被写数据高位/被读数据字个数高位
VB106 //被写数据低位/被读数据字个数低位
VB107 //被发送数据CRC低位
VB108 //被发送数据CRC高位
2．接收指令RCV缓冲区
VB200 //rcv指令要接收的字节个数
VB201 //变频器地址（01）
VB202 //modbus功能码（06/03）
VB203 //变频器被写地址高位/被读数据字节个数高位
VB204 //变频器被写地址低位/被读数据字节个数低位
VB205 //被写数据高位/被读数据高位
VB206 //被写数据低位/被读数据低位
VB207 //被接收数据CRC低位
VB208 //被接收数据CRC高位
VB217 //被接收数据CRC验算低位
VB218 //被接收数据CRC验算高位
2．CRC校验子程序（SBR0）
伟创AC60变频器内置的MODBUS协议采用RTU传输格式，只是采用了部分MODBUS从协议（只支持03、06、08H这三种命令）通信速率比ASCII模式更快。该格式使用CRC校验方式对每次发出或接收的数据帧进行校验。因此，该子程序使用了多个局部变量，以方便其它子程序调用。
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New Cisco Systems 7603-DC-BUN | incl 19% VAT | 2 years Cybertrading warranty
New CISCO 7609S-S32-8G-B-P | incl 19% VAT | 2 years Cybertrading warranty
New Cisco Systems 7609S-SUP720B-P | incl 19% VAT | 2 years Cybertrading warranty
New Cisco Systems ASA5525-CU-K9 incl 19% VAT // 2 years IT4Trade warranty
Cisco Systems CISCO7604/PDSN | incl 19% VAT | 2 years Cybertrading warranty
Cisco 76-ES+XC-40G3C Cisco 7600 ES+XC Combo 20x1GE/ 2x10GE, DFC3C
New Cisco Systems WS-X4748-SFP-E incl 19% VAT // 2 years IT4Trade warranty
Cisco Systems U7246VXR-ONE28UG2
New Cisco Systems VS-S720-10G-3C | incl 19% VAT | 2 years Cybertrading warranty
Cisco Systems A9K-MOD80-SE | incl 19% VAT | 2 years Cybertrading warranty
Cisco Systems CTS-INTP-C40-WC-K9
CISCO SPA-1CHSTM1/OC3V2 | incl 19% VAT | 2 years Cybertrading warranty
New CISCO C3945E-CME-SRST/K9 | incl 19% VAT | 2 years Cybertrading warranty
CISCO - ASR1002-5G/K9 - ASR1002 w/ESP-5G,AESK9,4GB DRAM
CISCO 15454-10GE-XPE= 4x10ge Enhanced Crossponder Nob 3YR WNTY
NEW IN BOX CISCO ASA5555-K9 Firewall Edition Security Appliance ASA5555-X
UBR-MC3GX60V 24US/48DS 3 A?OS DE GARANTIA
Cisco WAVE-7541-K9 Wide Area Virtualization Engine WAAS, 2,8TB 2x PWR-WAVE-650W
#NEW# Cisco ASA5555-K9 Firewall Security Appliance #FAST SHIPMENT#
New Cisco Systems ASA5500-SSL-750 | incl 19% VAT | 2 years Cybertrading warranty
Cisco Systems ASA-SSL-100-750
Cisco Systems L-ASA-SSL-750
New Cisco Systems L-ASA-SSL-750 | incl 19% VAT | 2 years Cybertrading warranty
New Cisco Systems ASA5500-SSL-750 | incl 19% VAT | 2 years Cybertrading warranty
Cisco WS-C4506-E - 2x -X45-SUP7L-E, 2x X4648-RJ45-E, 2x X4648-RJ45V+E, 2x 1400AC
New CISCO C3925E-VSEC-SRE/K9 | incl 19% VAT | 2 years Cybertrading warranty
Cisco UCSC-C240-M3S dual P/S 24x 600GB 6Gb SAS, 2x Xeon E5-2690v2, 192GB (16GB)
Cisco Systems ASR1001X-2.5G-K9
CISCO SG550XG-48T 48-PORT 10GBASE-T STACKABLE MANAGED IN
New CISCO WS-C4500X-24X-ES | incl 19% VAT | 2 years Cybertrading warranty
Cisco Systems N77-C7718-FAB-2
NEW SEALED CISCO VS-S2T-10G-XL - Sup2T, 2x10GbE, 3x1GbE w/ MSFC5 PFC4XL - 3YR W
CISCO A9K-16T/8-B - 2-Port 10GE, 20-Port GE Low Queue LC - 3YR Warranty
CISCO 7606-S w/ 1x RSP720-3C-10GE, 2x PWR-2700-AC CISCO7606-S - 3YR Warranty
CISCO WS-X6908-10G-2TXL Catalyst 6900 8-Port 10 Gigabit Ethernet Fiber Module
*NEW* Cisco 7206VXR Router w/ NPE-G2 Dual AC Power Supply 2GB/256F + SA-VAM2+
CISCO 7600-ES+40G3CXL Cisco 7600 Series Ethernet Services Plus 40G Line Card
Cisco CRS-8-LCC CRS-8-FC140/S CRS-8-RP CRS-8-PSH-DC CRS-PM-DC CRS-8/S Spare 140G
Cisco CRS-8-LCC CRS-8-FC140/S CRS-8-RP CRS-8-PSH-AC CRS-PM-AC CRS-8/S Spare 140G
CISCO CTI-4505-MCU-K9 Telepresence Voice/Video/Data Server
Cisco ASA5550-SSL5000-K9 w SSM-4GE Module, VPN Premium Plus Security FireWall
Cisco CPAK-100G-LR4 Transceiver module, 10km SMF
NEW CISCO N7K-SUP2E Nexus 7000 2ND Generation Supervisor Enhanced Module
CISCO A9K-MOD80-OPT-LIC ADVANCED OPTICS LICENSE FOR MOD80 3 YR WARRANTY
CISCO CPAK-10X10G-LR CPAK10X10GLR, TRANSCEIVER MODULE, 3 YR WARRANTY
Cisco 1X100GBE (CRS-3 1-Port 100 Gigabit Ethernet Interface Module)
NEW Cisco RSP720-3CXL-GE 7600 Series Route Switch Processor Module
Cisco N7K-C7004 Nexus 7000 Series 4-Slot Chassis N7K-AC-3KW N7K-C7004-FAN MH
CISCO ASR1006 V02 w/ 2DC, 2x ASR1000-RP1, 2x ESP20, SIP10, 2x SPA-2X1GE-V2
CISCO C6880-X-LE Catalyst 6880-X-Chassis w/ C6880-X-FAN & Dual C6880-X-3KW-AC
CISCO 76-ES+XC-40G3C 3YR WNTY
CISCO Route Switch Processor 440 A9K-RSP440-SE
Cisco ASR-9912-SFC110 ASR 9912 Switch Fabric Card (We buy and sell Cisco)
CISCO A9K-MPA-8X10GE ASR 9000 8-PORT 10-GIGABIT ETHERNET MODULAR PORT ADAPTER
2 Pieces Bundle of NEW Sealed Cisco WS-C4500X-16SFP+ 10 Gigabit Ethernet Switch
*New Sealed* Cisco WS-C3850-24XU-L 24 UPOE Ethernet port + C3850-NM-2-10G Module
We buy Cisco **** WS-C3850-24S-S Switch
We buy Cisco ***** WS-C3850-24XS-S ***** (Brand New ) 3850
Cisco CISCO7606-S Router Chassis w/ 2700-AC Power & Fan + 2 x RSP720-3CXL-GE
CISCO WS-C6509-E w/ Fan & Dual Power 2x VS-S720, 2x WS-X6716, 2x WS-X6148
NEW IN BOX CISCO RSP720-3CXL-10GE Cisco7600 Router Switch Processor !SHIP FAST!
*New* CISCO N7K-F248XP-25E Nexus 7000 Enhanced F2-Series 48 Port 1G/10G
Cisco 15454-OPT-RAMP-C WOGUADWEAA ONS 15454 RAMAN PUMP MODULE C-Band + Warranty
New Sealed Cisco WS-X6716-10G-3CXL 16-Port 10GigE Mod 6716 w/ DFC3CXL
Cisco Systems C3925-WAAS-UCSE/K9
CISCO A9K-MPA-2X40GE ASR 9000 2-PORT 40GE MODULAR PORT
Cisco UCSC-C240-M3S dual P/S 24x 600GB SAS, 2x Xeon E5-2667v2, 32GB 1600 MHz
NEW Cisco ISR4451-X-AX/K9 Cisco ISR 4451 AX Bundle w/APP, SEC license
CISCO AS535XM-4E1-120-D | incl 19% VAT | 2 years Cybertrading warranty
Cisco 7600-ES+4TG3CXL Switch Line Card 1YearWarranty 2+Available
Cisco 15454-OC192-LR2 Optics Line Card 1YearWarranty 2+Available
Cisco Nexus N5K-C5548P-B-S16 Managed Switch 1YearWarranty 2+Available
Cisco Systems N3K-C3132Q-40GE
CISCO ASR1001X-2.5G-K9 | incl 19% VAT | 2 years Cybertrading warranty
Cisco Systems WAVE-694-K9 | incl 19% VAT | 2 years Cybertrading warranty
NEW Sealed WS-C3850-12XS-E 12 SFP+ Ethernet ports Switch w/ 350WAC power supply
Cisco A9K-2T20GE-L 2-Port 10GE Line Card, Expansion Module
WS-C6506-E Dual 6000W P/S VS-S720-10G-3C 4x WS-X6704-10GE WS-X6708-10G-3CXL
Cisco Systems L-FLSA1-2X-10-20G
Cisco Systems A9K-4T-E | incl 19% VAT | 2 years Cybertrading warranty
*Good Condition* Cisco A9K-2T20GE-L Ethernet Line Card ** Fast Shipment **
New CISCO C3925E-VSEC-CUBEK9 | incl 19% VAT | 2 years Cybertrading warranty
CISCO ASR1001X-2.5G-K9 | incl 19% VAT | 2 years Cybertrading warranty
Cisco UCSB-B200-M3 256GB, 2x Intel E5-2667 v2/130W, 1TB SAS 7.2K RPM
NEW IN BOX CISCO AIR-CT5508-500-K9 AIRONET 5508 CONTROLLER W/500 APS *SHIP FAST*
CISCO7606-S Chassis w/ Dual Power 2x RSP720-3CXL-GE Supervisor
*New Sealed* Cisco WS-C3850-12XS-E 12 SFP+ Ethernet ports w/ 350WAC power supply
NEW Sealed Cisco RSP720-3CXL-10GE Cisco 7600 Series RSP720-10GE with PFC-3CXL
Cisco PXM1E-8-155
New CISCO L-FLSA1-2X-10-20G | incl 19% VAT | 2 years Cybertrading warranty
New CISCO C3925-WAAS-UCSE/K9 | incl 19% VAT | 2 years Cybertrading warranty
NEW Cisco WS-C4500X-32SFP+ w/ 2x C4KX-PWR-750AC-R Power,C4KX-NM-8SFP+ Module
New Sealed Cisco RSP720-3CXL-10GE 7600 Series RSP720-10GE with PFC-3CXL Module
*New In Box* 2x CISCO AIR-CT5508-50-K9 Wireless Controller w/ 50 APs *Ship Fast*
Cisco Systems WS-X6824-SFP-2TXL
*NEW SEALED* CISCO WS-C3850-32XS-S 2 Years Warranty/VATfree 9000€ 3850
Cisco Systems U7246VXR-ONE28UG2 incl 19% VAT // 2 years IT4Trade warranty
Cisco WS-C4506-E 2x X45-SUP7L-E, 4x WS-X4648-RJ45-E, 2x 1000AC
Cisco Systems AS535XM-VXML-120-V
CISCO VG350-144FXS/K9 | incl 19% VAT | 2 years Cybertrading warranty
New Juniper EX-XFP-10GE80KDWDM | incl 19% VAT | 2 years Cybertrading warranty
NEW Cisco WS-C4500X-F-16SFP+ Catalyst 16 Port Switch w/ C4KX-PWR-750AC-F Power
Cisco UCSB-B200-M3 10x 16GB DDR3, 2x E5-2630, 2x 900GB 6Gb SAS
CISCO - WS-X6908-10G-2T - C6K 8 port 10 Gigabit Ethernet module with DFC4
CISCO 7609S-RSP720CXL-P | incl 19% VAT | 2 years Cybertrading warranty
CISCO C3945-WAAS-SEC/K9 | incl 19% VAT | 2 years Cybertrading warranty
Cisco UCSB-B200-M3 256GB, 2x Intel 2.4 GHz E5-2609/80W, 500GB 6Gb SATA 7.2K RPM
Cisco Systems VG350-144FXS/K9
Cisco Nexus N5K-C5596UP-FA Switch Chassis
Cisco Systems WS-C3750X-48U-E
New Cisco Systems WS-C3650-48FD-E | incl 19% VAT | 2 years Cybertrading warranty
Cisco Systems ASA5580-20-10K-K9
Cisco Catalyst 3750X-48P-S - Switch - verwaltet
Cisco UCSC-C240-M3S dual P/S 18x 600GB 6Gb SAS, 2x Xeon E5-2680v2, 288 (16GB)
CISCO ASR1004 w/ 2AC, ASR1000-RP1, ESP20, SIP10, 10X1GE, 1X10GE - 3YR Warranty
CISCO ASR1004 w/ 2AC, ASR1000-RP1, ESP20, SIP10, 1X10GE, 5X1GE - 3YR Warranty
*New In Box* CISCO AIR-CT5508-500-K9 Air 5508 Wireless LAN Controller 500 Ap's
#NEW# Cisco AIR-CT5508-500-K9 Aironet 500 AP Controller #FAST SHIPMENT#
New Cisco Systems WS-X4748-SFP-E | incl 19% VAT | 2 years Cybertrading warranty
New Cisco Systems WS-C4506-S2+96 incl 19% VAT // 2 years IT4Trade warranty
Cisco Systems ASA5540-UC-BUN-K8 incl 19% VAT // 2 years IT4Trade warranty
Cisco Systems ASA5540-UC-BUN-K9 incl 19% VAT // 2 years IT4Trade warranty
Cisco Systems ASA5545-2SSD120-K9 incl 19% VAT // 2 years IT4Trade warranty
*NEW* CISCO ASR1001-X with 20G Throughput ASR1001X-20G-K9 2YearsWnty 16G RAM
Cisco Systems WS-C4928-10GE
New Cisco Systems WS-X6816-10G-2T | incl 19% VAT | 2 years Cybertrading warranty
Cisco Systems 15454-OPT-AMP-C
Cisco Systems A9K-2T20GE-L
Cisco Systems PXM1E-8-155 | incl 19% VAT | 2 years Cybertrading warranty
Cisco Systems ASA5580-20-10K-K9
Cisco UBR-MC3GX60V Broadband Processing Engine UBR10K 48DS 24US
NEW IN BOX CISCO AIR-CT5760-50-K9 CISCO 5760 WLS 90DAYS WARRANTY **SHIP FAST**
Cisco DS-X9448-768K9 MDS 9700 48-Port 16-Gbps Fibre Channel Switching Module
#NEW# Cisco AIR-CT5760-50-K9 5700 Series Wireless Controller #FAST SHIPMENT#
New Cisco Systems WS-C3650-48FD-E | incl 19% VAT | 2 years Cybertrading warranty
CISCO ASA5580-20-10K-K9 | incl 19% VAT | 2 years Cybertrading warranty
Cisco Systems ACE-4710-4F-K9
Cisco Systems 7604-RSP7C-10G-P
Cisco Systems 7609-RSP720CXL-R
Cisco Systems MXE-5600-K9
Cisco Systems 7609S-RSP720CXL-P
New Cisco Systems WS-X4748-SFP-E | incl 19% VAT | 2 years Cybertrading warranty
New CISCO C3945-VSEC-PSRE/K9 | incl 19% VAT | 2 years Cybertrading warranty
New Cisco Systems WS-X4748-SFP-E | incl 19% VAT | 2 years Cybertrading warranty
NEW Sealed Genuine Cisco ASA5545-K9 ASA 5500-X Series Next Generation Firewalls
Cisco Systems ASR5K-PSC-64G-K9
CISCO (WS-C3850-12X48U-S) CISCO CATALYST 3850 48 PORT (12 MGIG+36 GIG) UPOE IP B
Cisco Systems L-ASA-SSL-500
NEW Cisco WS-C4500X-32SFP+ w/ C4KX-NM-8SFP+ Module, Dual C4KX-PWR-750AC-R Power
Cisco Systems ESA-C370-K9
CISCO - RSP720-3C-10GE - Cisco 7600 Route Switch Processor 720Gbps fabric, PFC3C
Cisco Systems 7604-RSP7C-10G-P
Cisco Systems 7609-RSP720CXL-R
Cisco Systems ACE-4710-4F-K9
Cisco Systems AS5850-EG-SK
CISCO ASR5K-PSC-64G-K9 | incl 19% VAT | 2 years Cybertrading warranty
Cisco Systems ACE-4710-4F-K9 | incl 19% VAT | 2 years Cybertrading warranty
New Cisco Systems MXE-5600-K9 | incl 19% VAT | 2 years Cybertrading warranty
Cisco UBR-MC88V DOCSIS 3.0 Broadband Processing Engine 1 Year Warranty
NEW SEALED Cisco WS-C4948E-F-S Catalyst Switch 1YearWarranty 2+Available
New Cisco Systems L-ASA-SSL-500 | incl 19% VAT | 2 years Cybertrading warranty
Cisco Systems ASA-SSL-100-500
Cisco Systems ASA5500-SSL-500
New Cisco Systems SPA-2X1GE-SYNCE | incl 19% VAT | 2 years Cybertrading warranty
New Cisco Systems WS-C3850-48F-E incl 19% VAT // 2 years IT4Trade warranty
Cisco Systems WS-X4748-12X48U+E incl 19% VAT // 2 years IT4Trade warranty
Cisco Systems ESA-C370-K9
Cisco Systems N3K-C3172PQ-10GE
CISCO - SPA-1XOC48POS/RPR= - 1-port OC48/STM16 POS/RPR Shared Port Adapters
Cisco WS-C4506-E - 2x X45-SUP7L-E, 3x X4648-RJ45V+E, 1400AC
NEW IN BOX CISCO NEXUS N3K-C3064TQ-10GT 48 x 10GBase-T + 4 x QSFP+ **SHIP FAST*
NEW Cisco 7206VXR Router w/ NPE-G2 Dual AC Power Supply 2GB/256F SA-VAM2+ Module
Cisco UCSC-C240-M3S dual P/S 24x 600GB 6Gb SAS, 2x Xeon E5-2667v2, 128GB (8GB)
Cisco WS-C4506E-S6L-96V+ Cayalyst Switch 1YearWarranty 2+Available
NEW SEALED Cisco 7600-SIP-600 SPA Interface Processor 600 1YearWaranty 2+Avlble
NEW SEALED Cisco SM-D-72FXS Double Wide Service Module 1YearWarranty 2+Available
Cisco VS-C6506E-S720-10G Switch 1YearWarranty 2+Available
Cisco 15454-OPT-RAMP-C (800-29479-03) ONS 15454 RAMAN PUMP MODULE
New Cisco Systems L-ASA-SSL-500 | incl 19% VAT | 2 years Cybertrading warranty
Cisco UCSB-B200-M3 192GB (32GB), Intel 3.30 GHz E52667v2, 600GB 6Gb SAS 10K
CISCO CRS-FP140 CRS FORWARDING PROCESSOR 140G "NEW IN BOX"
CISCO CATALYST 3650 48 PORT DATA 2X10G UPLINK IP SERVICES IN
Cisco Systems ESA-C370-K9 | incl 19% VAT | 2 years Cybertrading warranty
Cisco Systems ASR5K-PSC-64G-K9
New Cisco Systems SPA-2X1GE-SYNCE | incl 19% VAT | 2 years Cybertrading warranty
Cisco Systems 76-ES+XC-20G3CXL
Cisco Systems CRS1-SIP-800
Cisco Systems DS-C9506-2AK9
Cisco WS-C6504-E Dual P/S 2x VS-S720-10G-3C WS-X6716-10G-3C WS-X6708-10G-3CXL
CISCO - ASA5555-K9 - ASA 5555-X w/SW, 8GE Data, 1GE Mgmt, AC, 3DES/AES
New Cisco Systems WS-C3850-48U-E incl 19% VAT // 2 years IT4Trade warranty
New CISCO CISCO3925E-SEC/K9 | incl 19% VAT | 2 years Cybertrading warranty
NEW Cisco RSP720-3CXL-10GE 7600 Route Switch Processor 1YearWarranty 2+Available
#NEW# Cisco RSP720-3CXL-10GE 7600 Series Module #FAST SHIPMENT#
CISCO WS-X6816-10G-2TXL 16-Port 10 Gigabit Ethernet Fiber Module with DFC4XL
*NEW SEALED* Cisco RSP720-3CXL-10GE 7600 Series RSP720-10GE Module with PFC-3CXL
*Good Condition* Cisco WS-X6816-10G-2TXL Ethernet Interface Card * Fast Ship *
~NEW SEALED~ CISCO WS-C3850-24XU-E Stackable 24 Port Switch ~FAST DELIVERY~
Cisco Systems N7K-SUP2E
New Cisco Systems WS-SVC-FWM-1-K9 | incl 19% VAT | 2 years Cybertrading warranty
Cisco Systems ASR1000-2T+20X1GE
CISCO 76-ES+XC-20G3CXL | incl 19% VAT | 2 years Cybertrading warranty
Cisco Systems AS5400-AC
Cisco Systems 7204VXR/CPE
New Cisco Systems 7600-PFC3C-10GE | incl 19% VAT | 2 years Cybertrading warranty
Cisco Systems 10000-1P3-1AC
Cisco Systems 10000-2P2-2AC
New CISCO WS-C4500X-32SFP+ | incl 19% VAT | 2 years Cybertrading warranty
CTI-VCS-EXPRESS-K9 Cisco TelePresence Video Communication Server Expressway
CTI-VCS-CONTRL-K9 Cisco TelePresence Video Communication Server Control
~GOOD CONDITION~ CISCO WS-X6816-10G-2TXL 16 Port Fiber Module ~FAST DELIVERY~
Cisco UCSC-C220-M3S w/dual P/S-E5-2680, 8x 300GB 6Gb SAS, 2x 32GB DDR3
~GOOD CONDITION~ CISCO WS-X6904-40G-2TXL 4 Port Ethernet Module ~FAST DELIVERY~
New Cisco Systems VS-S720-10G-3C incl 19% VAT // 2 years IT4Trade warranty
NEW SEALED CISCO WS-X6908-10G-2TXL Switch 1YearWarranty 2+Available
New ASR1000-ESP40 Cisco ASR 1000 Series 40-Gbps New Sealed
New Cisco Systems SPA-2X1GE-SYNCE | incl 19% VAT | 2 years Cybertrading warranty
CISCO 76-ES+XC-20G3CXL | incl 19% VAT | 2 years Cybertrading warranty