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Application and functions
1.6 Compatibility with the previous product
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 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).
1.6.3
Compatibility in the user program in DP mode
Device-dependent differences on the program block interface
Compared with previous modules, the CP reacts differently in the following ways. Remember
the effects in your user program. The following table provides an overview:
Table 1- 3
Changes in response
Topic / relates to
1.
DPSTATUS output parameter in
program block DP_RECV
DP master mode:
DP slave mode:
2.
DP modes
3.
Set current DP mode
4.
Cyclic reading of the
input/output data using
program block DP_CTRL
24
Response of the device types
CP 342-5 6GK7 342-5DA00-0XE0
CP 342-5 6GK7 342-5DA01-0XE0
Bit 6: Display of "received data
overflow"
Bit 3: Display of "No frame from DP
master within the watchdog time"
Bit 4: Display of "DP data overflow"
A distinction is made between
STOP and OFFLINE.
- is supported -
- is supported -
1)
New response of the device types
CP 342-5 6GK7 342-5DA02-0XE0
CP 342-5 6GK7 342-5DA03-0XE0
Bit 6: is no longer set
Bit 3: is no longer set
Bit 4: is no longer set
The STOP mode is mapped to the OFFLINE
mode.
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
With the version of the CP 342-5 described
here, the following services of program block
DP_CTRL are no longer supported:
CTYPE = 7
CTYPE = 8
These job types are rejected with code 8311
Equipment Manual, 01/2023, C79000-G8976-C146-11
.
H
CP 342-5
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