Structure Of Device-Specific Diagnostics Of The Im 308-C As Dp Slave - Siemens SIMATIC S5 Manual

Distributed i/o system
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Restrictions
You need a memory card in order to operate the IM 308-C as DP slave, so the
following restrictions apply:
The slave CPU cannot read the slave diagnostics.
Structure of slave
The structure of the slave diagnostics (bytes 0 to 5) is described in Section
diagnostics
9.4.
You can read the slave diagnostics via the DP master.
The structure of the device-specific diagnostics of the IM 308-C as DP slave
is as follows:
Byte 6
Byte 7
Byte 8
Figure 3-4
Response
If the IM 308-C as DP slave cannot be addressed by the DP master and "Re-
monitoring
sponse monitoring = YES" is configured in COM ET 200 Windows, the
IM 308-C goes to STOP when the response monitoring time elapses.
Inputs of the IM 308-C as DP slave are set to "0".
ET 200 Distributed I/O System
EWA 4NEB 780 6000-02a
IM 308-C master interface and memory card
The station number of the IM 308-C as DP slave is set by means of the
memory card.
The baud rate is set by means of the memory card and is invariable, i.e.
unlike other DP slaves the IM 308-C does not auto-detect the baud rate.
The IM 308-C as DP slave cannot process the FREEZE and SYNC con-
trol commands.
7
0 0 0 0 0 0 1 1
Length of ID-specific diagnostics
incl. byte 6 (= 3 bytes)
Code for device-specific diagnostics (see Section 9.4)
7
0 0 0 0 0 0 0
1: CPU outputs BASP (disable command output)

Structure of device-specific diagnostics of the IM 308-C as DP slave

0 Bit No.
00
: reserved
H
3
3-15

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