Delta RMC151 - Manual (Page 571)

6 Communication
Serial Communications:
To edit the parameters of the message block, select the MSG block, enter an unused MSG
file in the MSG File parameter, and double-click Setup Screen. This brings up a dialog
with the following options:
This Controller: This section holds parameters for the MicroLogix.
Communication Command: This parameter can be set to PLC5 Read, PLC5 Write,
500CPU Read, or 500CPU Write. The type of PLC selected is not important, but the
Read or Write determines whether you will read registers from the RMC or write
registers into the RMC.
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.
Size in Elements: Enter the number of RMC registers to read or write in this
field. The MicroLogix can transfer 1 to 41 integers.
Channel: Set this to the channel number of the serial port you want to use. The
MicroLogix 1500 LRP Series B can use either channel 0 or 1, but all other MicroLogix
PLCs will always use channel 0.
Target Device: This section holds parameters for the target device.
Message Timeout: Indicate the number of seconds to wait for the RMC to respond
before determining that the attempt failed. This can be set as low as a few
seconds.
Data Table Address: Enter the address of the first RMC register to read or write in
this field. See the Registers Maps topic for help on addresses.
Local Node Addr (dec): Enter the node address of this RMC. The node address of
the RMC is set up in the Serial Port Settings Page. The node address entered on
that screen is in decimal, so it is recommended that you enter the same number in
the dec field.
Local/Remote and Bridge Parameters: In most applications these will be set to
Local and there will be no bridge parameters. If you are using a bridge then these
parameters will need to be used. However, this is beyond the scope of RMC
documentation. Refer to your Allen-Bradley documentation for instructions on using
these fields.
Ethernet Communications (MicroLogix 1100):
1. In the RSLogix project tree, in the Data Files, create a message File (MG) data file
and a Routing Information (RI) data file.
2. Add the MSG block to the ladder logic. Select the MSG block, enter the an address
in the Message data file you just created (e.g MG9:0), and double-click Setup
Screen.
This brings up a dialog with a General tab with the following options:
This Controller: This section holds parameters for the MicroLogix.
Channel: To use Ethernet on the MicroLogix 1100, choose 1 (integral).
Communication Command: This parameter can be set to PLC5 Read, PLC5
Write, 500CPU Read, or 500CPU Write. The type of PLC selected is not
important, but the Read or Write determines whether you will read registers
from the RMC or write registers into the RMC.
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