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

6.6.1 Reading out the diagnosis
Length of the diagnostic message frame
• 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
• The minimum frame length is
– 6 bytes (module diagnosis, module status, and channel-specific diagnosis
blocked by parameter assignment).
Ways of reading the diagnosis
Table 6-8

Reading the diagnosis out using STEP 7 and STEP 5

Programmable logic
controller with DP
master
SIMATIC S7/M7
SIMATIC S5 with
IM308-C as DP master
SIMATIC S5 with the
S5-95U PLC as DP
master
1)
Only with S7-400 as of V3.0 and with the CPU 318 as of V3.0
ET 200S Distributed I/O System
EWA-4NEB780602402-09
Block or
register in
STEP 7
"DP Slave Slave diagnosis in plain-text form
Diagnostics" tab on the STEP 7 user interface
SFC13 Read out slave diagnosis
"DP NRM_DG" (store in data area of the user
program)
SFC 59 Read data records of the S7
"RD_REC" diagnosis (store in the data area of
the user program)
SFB 52 Read data records from the DP
slave
"RDREC"
SFB 54 Receive interrupts from the
1)
"RALRM" interrupt OBs
FB192 "IM308C" Read out slave diagnosis
(store in data area of the user
program)
FB230 "S_DIAG"
Commissioning and Diagnostics
Application
)
See ...
The section on hardware
diagnostics in the STEP 7
online help system
For the structure, see
Section 6.6.2; for SFC,
see the STEP 7 online
help system
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 th ET 200 Di t ib t d I/O
System manual
6-27