Delta RMC101 - Manual (Page 317)

Ethernet 5.2
Communications 5-67
PLC-5 MSG Block Parameters:
The PLC-5 MSG block is displayed as follows:
• Control: This parameter points to a block of 51 N-file (integer) registers or two (2) MG-file
(message) registers. Set this to an unused block of registers, and then use the Setup Screen
option in the MSG ladder logic block to modify those register values:
• This PLC-5: This section holds parameters for the PLC-5.
o
Communication Command: From this drop-down list, select PLC-5 Typed Read to read
values from the RMC, or PLC-5 Typed Write to write values to the RMC.
o
Data Table Address: Enter the address of the first Allen-Bradley PLC register to read RMC
registers into, or to write to RMC registers from.
o
Size in Elements: Enter the number of RMC registers to read or write in this field. Transfers
are limited to 1000 bytes for PLC-5 Typed Reads and Writes. Therefore, this limit is 500
integers, 250 floats, etc. Notice that this limit is larger than the number of elements in the
RMC's N-files. Reads or writes that extend beyond the end of a register file will continue into
the next register file. For example, reading 300 elements from N9:0 will read N9:0 to
N9:255, then N10:0 to N10:43.
o
Port Number: Set this to the Ethernet channel number. For the PLC-5, this should be
channel #2.
o
Target Device: This section holds parameters for the target device.
o
Data Table Address: Enter the address of the first RMC register to read or write in this
field. See the RMC Register Map (Allen-Bradley) for help on addresses.
o
MultiHop: This parameter should be set to No.
o
Ethernet (IP) address: Set this to the IP address of the RMC you wish to communicate
with.
ControlLogix MSG Block Parameters:
The ControlLogix MSG block is displayed as follows: