Siemens CP 342-5, Руководство пользователя

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Compatibility with the previous product
7.3 Compatibility in the user program in DP mode
CP 342-5 / CP 342-5 FO
38
Manual, 10/2011, C79000-G8976-C146-09
Note
What to do with a slot left empty
If you cannot eliminate gaps in the slots left by replacing modules by closing up the
remaining modules, you will need to use a dummy module (6ES7 370-0AA01-0AA0). The
dummy module is is not configured and does not occupy any address space.
In this case, the address switch on the rear of the module must be set to "Non Address
Mode" (NA).
7.3 Compatibility in the user program in DP mode
Device-dependent differences on the program block interface
Compared with previous modules, the CP 342-5/342-5 FO reacts differently in the following
ways. Remember the effects in your user program. The following table provides an overview:
Table 7- 1 Changes in response
Topic / relates to Response of the device types
CP 342-5 6GK7 342-5DA00-0XE0
CP 342-5 6GK7 342-5DA01-0XE0 New response of the device types
CP 342-5 6GK7 342-5DA02-0XE0
CP 342-5 6GK7 342-5DF00-0XE0
CP 342-5 6GK7 342-5DA03-0XE0
DPSTATUS output parameter
in program block DP_RECV
DP master mode: Bit 6: Display of "received data
overflow"
Bit 6: is no longer set
1.
DP slave mode: Bit 3: Display of "No frame from DP
master within the watchdog time"
Bit 4: Display of "DP data overflow"
Bit 3: is no longer set
Bit 4: is no longer set
2. DP modes A distinction is made between
STOP and OFFLINE.
The STOP mode is mapped to the OFFLINE
mode.
3. Set current DP mode - is supported - With the version of the CP 342-5 described
here, the following job parameters are no
longer supported for program block DP_CTRL
with CTYPE 4:
 RUN with AUTOCLEAR

RUN without AUTOCLEAR