5-4
ET 200L Distributed I/O Device
EWA-4NEB 780600902-05
5.2.1 Structure of the Slave Diagnosis
The diagnostics of the ET 200L distributed I/O device comply with
IEC 61784-1:2002 Ed1 CP 3/1. The slave diagnosis is explained below.
The slave diagnosis comprises 6 bytes for the ET 200L:
Byte 0
Byte 1
Byte 2
Byte 5
Byte 3
Byte 4
Station statuses 1 to 3
Master PROFIBUS address
High byte
Low byte
Manufacturer ID
ET 200L
Figure 5-1 Structure of the Slave Diagnosis
You can request a slave diagnosis with the following function blocks:
Table 5-2 Function Blocks for Slave Diagnosis
PLC Family Number Name
SIMATIC S5 with IM 308-C FB 192 192 FB IM308C
SIMATIC S7/M7 SFC 13 13 SFC “DPNRM_DG”
S5-95U with DP master interface FB 230 230 FB S_DIAG
SIMATIC S5 with
CP 5431 DP/FMS
Communication function blocks (see
standard FBs) SEND and RECEIVE
with job number 209
Introduction
Structure of the
Slave Diagnosis
Requesting a
Slave Diagnosis
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