2.4 Communications with MP-series Controllers
Message Functions
2-75
Pro-Typ (Communications Protocol)
Specify the type code of the communications protocol.
Cir-No (Circuit Number)
Specify the circuit number for the communications device.
Specify the same circuit number as displayed in the MPE720 Module Configuration Definition Tab Page.
The following table gives the valid circuit numbers.
Ch-No (Communications Buffer Channel Number)
Specify the channel number of the communications buffer.
You can specify any channel number provided it is within the valid range.
Type Code
Communications
Protocols
Remarks
1 MEMOBUS
Select this protocol when using the Extended MEMOBUS protocol.
MEMOBUS is automatically converted to Extended MEMOBUS
inside the 218IFD.
2
No-protocol communica-
tions 1 (unit: words)
This code is not used for the Extended MEMOBUS protocol.
3
No-protocol communica-
tions 2 (unit: bytes)
This code is not used for the Extended MEMOBUS protocol.
Communications Device Valid Circuit Numbers
218IFD 1 to 8
When executing more than one function at the same time, do not use the same channel number for the
same connection. You can use the same channel number as long as multiple functions are not executed
at the same time.