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Delta RMC151 User Manual

Page 569

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6 Communication

Control Block

This parameter points to a block of integer-file registers (51

registers for Ethernet, 12 for serial). Set this to a block of

registers, and then use the Setup Screen option in the MSG

ladder logic block to modify those register values:

This Controller: This section holds parameters for the

SLC 5/05.

o

Communication Command: This parameter will

be set to 500CPU Read, or 500CPU Write,

depending on what was selected in the MSG block

itself (as described above).

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. The range

enforced by the SLC is 1 to 256 values.

o

Channel: Set this to the channel number of the

serial Ethernet channel. For the SLC 5/05, this

should be channel #1 for both serial and

Ethernet.

Target Device: This section holds parameters for the

target device.

o

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.

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

For Ethernet:

Ethernet (IP) address: Set this to the IP

address of the RMC you wish to communicate

with.

MultiHop: This parameter should be set to No.

o

For Serial:

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.

Note:

For the SLC505, if the start of communications with the RMC exhibits several minutes of delay

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