Reading The Diagnosis Out Using Step 7 And Step 5 - Siemens ET 200S Manual

Commissioning and Diagnostics
6.6.1 Reading Out the Diagnosis
Length of the Diagnostic Message Frame
S The maximum message frame length for the ET 200S is as follows:
– IM151-1 BASIC: 43 bytes
– IM151-1 STANDARD, IM151-1 FO STANDARD, IM151-1 HIGH FEATURE
(DPV0 operation): 64 bytes
– IM151-1 HIGH FEATURE (DPV1 operation): 128 bytes
S The minimum frame length in the event of there being no errors is as follows:
– IM151-1 BASIC, IM151-1 HIGH FEATURE: 6 bytes (module diagnosis,
module status and channel-specific diagnosis disabled by parameter)
– IM151-1 STANDARD, IM151-1 FO STANDARD: 35 bytes
Ways of Reading the Diagnosis
Table 6-7

Reading the Diagnosis Out Using STEP 7 and STEP 5

Programmable Logic
Controller with DP
Master
SIMATIC S7/M7 "DP Slave
Diagnostics" tab
SFC13
"DP NRM_DG"
SFC 59
"RD_REC"
SFB 52
"RDREC"
SFB 54
"RALRM"
SIMATIC S5 with FB192 "IM308C"
IM308-C as DP master
SIMATIC S5 with the FB230 "S_DIAG"
S5-95U PLC as DP
master
1
Only with S7-400 as of V3.0 and with the CPU 318 as of V3.0
6-26
Block or
Register in
STEP 7
Slave diagnosis in plain-text form
on the STEP 7 user interface
Read out slave diagnosis
(store in data area of the user
program)
Read data records of the S7
diagnosis (store in the data area of
the user program)
Read data records from the DP
slave
Receive interrupts from the
1
interrupt OBs
Read out slave diagnosis
(store in data area of the user
program)
Application
The section on hardware
diagnostics in the STEP 7
online help system
For the structure, see
Section 6.6.2; for SFC,
see the online help
system in STEP 7
See the System and
Standard Functions
Reference Manual
For SFB, see the STEP 7
online help system
(system functions/system
function blocks)
For SFB, see the STEP 7
online help system
(system functions/system
function blocks)
For the structure, see
Section 6.6.2; for FBs, see
the ET 200 Distributed I/O
System Manual
Distributed I/O System ET 200S
EWA 4NEB 780 6024-02 07
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