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Index 5: Overview of PCP Modules and Status
3 bytes are provided for each connected PCP module.
Index 5 can be used to request the PCP communication status and even establish
communication if all PCP devices do not yet have a connection. To do this, write
01
on slot 0, index 5.
hex
Byte 1
Byte 2
Byte 3
Index 6: Activation/Deactivation of Modules and Slots
Slots can be deactivated via index 6. This setting is stored retentively. During
power up, index 6 is adjusted to the configuration and parameterization stored on
the PLC. The deactivated modules are logically ORed. However, this means that
some slots will be configured although no modules are connected to them.
Make sure that no modules are inserted in "deactivated" slots. Otherwise a
configuration error will be displayed.
Byte 1
8
7
6
5
4
3
2
Bit = 1: Module and slot inactive
Bit = 0: Module and slot active
Index 7: Read back active/inactive terminals and slots
Index 7 can be used to read back which slots have been deactivated. The status is
obtained from the parameterization during hardware configuration and index 6 via
a logic OR operation.
Byte 1
8
7
6
5
4
3
2
Bit = 1: Module and slot inactive
Bit = 0: Module and slot active
GFK-1911B
Chapter 8 Communications
Position in station (slot)
Status of PCP connection
0x00
No connection
hex
0x01
Connection OK
hex
0xFF
Error establishing connection
hex
Reserved
Byte 2
1
16
15
14
13
12
Byte 2
1
16
15
14
13
12
Bytes
Byte 8
3 ... 7
11
10
9
...
x
Bytes
Byte 8
3 ... 7
11
10
9
...
x
8
63
62
61
60
59
63
62
61
60
59
8-33
58
57
58
57
- Quick Links:
- Dip Switches on the Niu
- Leds on the Niu
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