Yokogawa Standalone MW100 - Manual (Page 128)

App-26
IM MW100-17E
Once the Control Block is designated, the Setup Screen can be configured. The first
item to fill in is the location of the data that is to be written from the PLC to the MW100,
designated as the Data Table Address. In this case N7:49 is chosen with an element
size of 1 (one byte of data - in order to read or write large amounts of data in a single
message, increase the elements size to the appropriate value). Channel 0 designates
what port to use on the PLC (in this case the serial port for DF1 communications – later
routed via a DigiOne IAP (DF1 to EIP gateway).
The next step is to configure where the message will be written. In this case a Message
Timeout of 5 seconds is used and Communication Channel C001 is being written to as
an integer using the syntax N30:0 for Data Table Address. In this case Local Node Addr
is set to 1 so that the gateway device knows to route all commands issued to Node 1
to the IP address of a specific MW100. If multiple MW100s are on a network then using
different Node Addresses within the message commands can be used in conjunction with
a gateway to route messages to specific MW100s (e.g. Node 1 to MW100 A, Node 2 to
MW100 B, etc…).
Write Message Setup Screen as configured for PLCs that support DF1.
Appendix 8 Detailed Explicit and I/O Messaging using RSLogix