CN15NN3A

                                                 西门子（SIEMENS)S7-400H系统信息及诊断图示
简介：在生产控制中，通常需要对S7-400H系统的信息和状态进行监控，例如监控CPU的主从状态、操作状态、DP从站与主站的通信状态等信息。在程序中可以通过对状态的判断进行必要的操作，也可以将系统信息上传到HMI，便于操作及维护人员监控。通过功能块可以将系统信息读出，下面介绍读取不同系统信息调用功能块的方法。
5.1利用SFC51(SSL-ID W#16#xy71)读出H系统信息
SSL-ID (SYSTEM STATUS LIST)系统状态目录，利用SFC51可以读出在SSL-ID指定的PLC系统信息，当SSL-ID 等于W#16#0071时,表示需要读出S7-400H系统当前的状态，可以在OB1或循环中断组织块OB3X中调用，调用SFC51的例子如图5－1所示：

图5－1 调用SFC51(SSL-ID W#16#0071)例子程序

SFC51的参数解释如下，
REQ                 ：为1是读取SZL_ID指定的系统信息，本例中M1.1为1时启动读请求。
SZL_ID            ：指定需要读取的系统信息，本例为W#16#71，H系统当前状态。
INDEX             ：本例中没有意义。
RET_VAL        ：调用SFC51的状态字。
BUSY              ：为1时表示读进程没有完成。
SZL_HEADER：输出系统信息存储的数据记录区号及长度，结构数据类型。
DR                   ：指定输出系统信息存储在CPU的地址区。

参数SZL_HEADER与DR的地址区在DB1中建立，如5－2所示：

图5－2 参数SZL_HEADER与DR的地址区
参数SZL_HEADER为一个结构数据，包括两个字，第一个字输出系统信息长度，例如W#16#10表示输出16个字节，第二个字输出存储系统信息的数据记录区，例如W#16#1表示数据记录区为1。参数DR为存储系统信息的地址区，数据类型为指针，长度必须大于参数SZL_HEADER第一个字输出的信息长度。本例中当M1.1为时，读取的系统信息存储在DB1.DBB4~DB1.DBB20 16个字节中。用户可以对16个字节长度的系统信息进行分析和处理，系统信息内容如下：
内容           长度                  含义
Redinf         2 bytes              冗余信息
W#16#0011：单机 H CPU运行
W#16#0012：H系统2备1运行
Mwstat1      1 byte                状态字节1
Bit 0：保留
Bit 1：保留
Bit 2：保留
Bit 3：保留
Bit 4：机架0中CPU的状态
=0：从 CPU
=1：主 CPU
Bit 5：机架1中CPU的状态
=0：从 CPU
=1：主 CPU
Bit 6：保留
Bit 7：保留
Mwstat2      1 byte               状态字节2  
Bit 0：同步连接状态 01：
CPU 0 和CPU 1同步
=0：不可能
=1：可能
Bit 1： 0
Bit 2:：0
Bit 3：保留
Bit 4：=0：CPU没有在机架0
=1：CPU在机架0上
(冗余模式： bit 4 = 0)
Bit 5：=0：CPU没有在机架1
=1：CPU在机架1上
(冗余模式： bit 5 = 0)

Bit 6：保留
Bit 7：主从切换是否从新使能
=0：否
=1：是

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SQUARE D KI36150 USPP KI36150

SQUARE D KI36225 USPP KI36225

SQUARE D 8903-QO5-11-V02 USPP 8903QO511V02

Square D, KHL36000M, Molded Case Switch Circuit Breaker 250A 3P NEW

Square D CM4000 PowerLogic Circuit Monitor Series D1 CVM

Square D KC34250 Thermal Magnetic Circuit Breaker 250A 250 amp I Line iline NEW

SQUARE D 8810-SC0-1 SERIES A W/ ENCLOSURE **

NEW SQUARE D 3050-SD-200 POWERLOGIC SYSTEM DISPLAY 3050SD200

1 NIB SQUARE D TVS4IMA12OC TRANSIENT VOLTAGE SURGE SUPPRESSOR 120 KA 480Y/277V

Square D Sy/Max Processor Module, 8020 SCP-523, Series 1, , WARRANTY

SQUARE D 3S1FIS NSFP 3S1FIS

SQUARE D H361DF NSFP H361DF

SQUARE D MHP36000-6MMT USPP MHP360006MMT

Factory Sealed H362DSVW Square D 60A Safety Switch H362DSVW         N843

SQUARE D 52011-435-50 USPP 5201143550

SQUARE D LHF3630026DC1616 NSPP LHF3630026DC1616

SQUARE D KHL3612517DC1616 NSPP KHL3612517DC1616

SQUARE D  8736SCO8V02S  SER A NEMA STARTER  *FACTORY SEALED*

Square D 8903SMG60V02P1 NSFP **GENUINE** Schneider Telemecanique

SQUARE D HU-462-DS NSPP HU462DS

SQUARE D MHL36600-1021 USPP MHL366001021

SQUARE D 8538SBG61V02CNP51X10 NSFP 8538SBG61V02CNP5

Square D 9039XW11V06 NSFP **GENUINE** 9039 XW11 V06 Schneider Telemecanique

SQUARE D 8839-EFD-D-G-2-VW-N07 NSPP 8839EFDDG2VWN07

SQUARE D LCL-36300 USPP LCL36300

SQUARE D 9070-SK3000G2D1 USPP 9070SK3000G2D1

SQUARE D 7S1FIS NSFP 7S1FIS

Square D JLL36000S25 NSFP **GENUINE** Schneider Telemecanique

SQUARE D TCS-ESM-083F2CU0 NSPP TCSESM083F2CU0

SQUARE D JJL36250M75LH USPP JJL36250M75LH

SQUARE D NF430-L2C NSFP NF430L2C

SQUARE D AF2310GETBMB USPP AF2310GETBMB

SQUARE D EGX-400 USPP EGX400

Square D 8030-SCP-523A Module

SQUARE D MA-36450 USPP MA36450

SQUARE D MA36500 USPP MA36500

SQUARE D MA-36600 USPP MA36600

* SQUARE D POWERLOGIC 3090 SRK-2 SYMAX 8030 CRM-565 CRM-510

SQUARE D EZMR113225 NSPP EZMR113225

SQUARE D LH-36350 USPP LH36350

SQUARE D HLL36150 NSPP HLL36150

Square-D SY/MAX 8030 SCP423 Processor. Series E, Revison 4.10.

SQUARE D NQOD442L225CU FNFP NQOD442L225CU

SQUARE D 8538-SBG62-V02CP1SX10 NSFP 8538SBG62V02CP1S

Square D H364NRB NSFP **GENUINE** Schneider Telemecanique

Square D VCELSK3 NSFP **GENUINE** Schneider Telemecanique

Square D 8810SBO2 240V NSFP **GENUINE** Schneider Telemecanique

SQUARE D 8903-SVG11-V02 USPP 8903SVG11V02

SQUARE D 8903SXO14E U 300A 600V 3P CoilNOT INCLUDED

SQUARE D H364AWKEI NSFP H364AWKEI

Square D TVS2XT12A NSFP **GENUINE** Schneider Telemecanique

Telemecanique Part Number ATV58HD46N4XZU, SQUARE D

SQUARE D 8030-ROM271 OUTPUT MODULE *NEW IN A BOX*

NEW SQUARE D 9998-SL11 CONTACT KIT 3 POLE SER. A, SIZE 5, 9998SL11, 85382

NEW SQUARE D 3020-CM2150 CIRCUIT MONITOR 3020CM2150

NEW SQUARE D 8030-PS-31 RACK POWER SUPPLY SER. B6, 30611-526-50 120VAC, 50/60HZ

SQUARE D 8536-SFO1-V02S USPP 8536SFO1V02S

Square D #3 Reversing Contactor Class 8810 , (B1)

Square D LHL36300 300A 3 Pole 600V LHL Breaker

Schneider TSXSTZ10 TSX Micro PLC Communication Module TSX37-XL7 Square D

SQUARE D S48890 NSFP S48890

SQUARE D GC100 USPP GC100

Square D PM820 NSFP **GENUINE** Schneider Telemecanique

MAL36800 SQUARE D BREAKER 120WR0003859

SQUARE D 9998-GA81 NSFP 9998GA81

SQUARE D 25S3H USPP 25S3H

Square D 9025BCW36 NSFP **GENUINE** 9025 BCW 36 Schneider Telemecanique

SQUARE D 8538-SDG16-V02CS NSFP 8538SDG16V02CS

SQUARE D LLP36400CU33XTXYP NSFP LLP36400CU33XTXY

SQUARE D 3020 CM2150 CIRCUIT MONITOR *NEW IN BOX*

Square D 8736SDO2V02S NSNP **GENUINE** Schneider Telemecanique

SQUARE D KHL36000M1590 NSFP KHL36000M1590

SQUARE D 85A USPP 85A

SQUARE D 8903-SQO11-V02 USPP 8903SQO11V02

SQUARE D CM4000 NSPP CM4000

SQUARE D IF36070 USPP IF36070

SQUARE D 8536-UG2-V02 USPP 8536UG2V02

SQUARE D LAP3640036MMTV6283 NSPP LAP3640036MMTV62

SQUARE D 3020-CM-2050 USPP 3020CM2050

SQUARE D 8660-MDO46B USPP 8660MDO46B

SQUARE D SY/MAX 8030CRM565 REV C  , SYNET POWER , (P1)

SYMAX Square D 8030-PS-25  8030PS25 8030 PS25 ser a1 SY/MAx

SQUARE D KA36200G USPP KA36200G

SQUARE D MAL36600-25M-1212 USPP MAL3660025M1212

new square d 52011-040-50 isolated signal pc board ~ obsolete

SQUARE D 8660-MD046 USPP 8660MD046

SQUARE D LAL34225MC1212 CIRCUIT BREAKER

SQUARE D LHL-26300 NSPP LHL26300

SQUARE D JJP36200 NSFP JJP36200

Square D Symax Model 500 Processor 8020 SCP-523X SCP523X M1 Rev 9.00 5VDC @ 4A

Square D 8994 SYS80 Lifetime Warranty !!!

SQUARE D MH56WP NSPP MH56WP

SQUARE D LHP36000MMT USPP LHP36000MMT

SQUARE D 8903SXO2E U 300A 600V 3P CoilNOT INCLUDED

SQUARE D 8538-SDG-11V02-H20S NSFP 8538SDG11V02H20S

SQUARE D H365 USPP H365

SQUARE D JJA36250 USPP JJA36250

SQUARE D KHL36250 USPP KHL36250

SQUARE D TVS-4HWA80X NSFP TVS4HWA80X

SQUARE D HU-462-DS USPP HU462DS

SQUARE D MAL-36450 USPP MAL36450

SQUARE D NF430-L2C NSPP NF430L2C

SQUARE D MH29WP NSPP MH29WP

SQUARE D 9810-ST200 USPP 9810ST200

SQUARE D 8539-SCG42S8-V02S USPP 8539SCG42S8V02S

SQUARE D EGX-300 NSFP EGX300

Square D #4 Contactor Class 8536 with overload block , (B1)

SQUARE D 3020-CM250 USPP 3020CM250

SQUARE D MAL360008VS8002 USPP MAL360008VS8002

SQUARE D KC342501628 USPP KC342501628

Square D 9070EO51 NSFP **GENUINE** SD  9070 EO51

SQUARE D S33930 NSFP S33930

SQUARE D 52011-005-51 NSFP 5201100551

Square D 8702SDO2V02 NSNP **GENUINE** 8702 SDO2 V02 Schneider Telemecanique

Square D 8702SDO2V02 NSFP **GENUINE** 8702 SDO2 V02 Schneider Telemecanique

Square D 8702SDO2V02S NSFP **GENUINE** 8702 SDO2 V02S Schneider Telemecanique

SQUARE D PQ3606G FNFP PQ3606G

Telemecanique XGSK6204321H4 NSFP **GENUINE**  Schneider Square D XGS K6204321H4

SQUARE D 8538-SCA24-V06-AP1 NSPP 8538SCA24V06AP1

SQUARE D LAF3640036MV1021 USPP LAF3640036MV1021

SQUARE D LAP3640036MMT1021 USPP LAP3640036MMT102

SQUARE D LAL36400 CIRCUIT BREAKER 400A *NEW IN BOX*

Square D 400a Mag-Gard 400 Motor Circuit Protector NEW

NEW SQUARE D 8810-SC04S MAGNETIC STARTER SER.A SIZE 1  8810SC04S

SQUARE D SY/MAX 8030-RRK300 18-SLOT PLC RACK *NEW IN BOX*

Square D HU364EI NSFP **GENUINE** Schneider Telemecanique

SQUARE D FUSIBLE PANELBOARD SWITCH QMB-362-T1 NEW QMB362T1

Square D KAL-36225 Circuit Breaker KAL36225 225a 225 amp NEW

KH36175 SQUARE D CIRCUIT BREAKER 120WR0002756

SQUARE D 3020-ECM-RM NSPP 3020ECMRM

SQUARE D ME36200LS USPP ME36200LS

Square D 8010 SFI-510 SY/MAX Interface Card Series A1 Rev. 2.01

Square D 9070SK1000G1D1 NSFP **GENUINE** 9070 SK1000G1D1 Schneider Telemecanique

Square D 8903SQG11V02   NSFP **GENUINE**  8903 SQG11 V02

Square D 9810ST200 NSFP **GENUINE** 9810 ST 200 Schneider Telemecanique

SQUARE D KHL-36150 NSPP KHL36150

SQUARE D C15S71FY NSPP C15S71FY

Square D 9070EO51 NSNP **GENUINE** 9070 EO 51 Schneider Telemecanique

Square D DTU224NRB NSFP **GENUINE** Schneider Telemecanique

Square D DTU224NRB NSNP **GENUINE** Schneider Telemecanique

Square D CHU361DS NSFP **GENUINE** Schneider Telemecanique

SQUARE D MHL-360008M USPP MHL360008M

SQUARE D KHL3620022DC1426 USPP KHL3620022DC1426

SQUARE D HJP36110AAYP NSFP HJP36110AAYP

Square D NF430L1C NSFP **GENUINE** NF4 30L1C

SQUARE D FCL-340151380 USPP FCL340151380

SQUARE D LA36400 CIRCUIT BREAKER 400A *NEW IN BOX*

SQUARE D KC341508002 USPP KC341508002