Delta RMC101 - Manual (Page 449)

Modbus Plus 5.3
Communications 5-199
This network waits until the state is equal to 1 and then triggers the MSTR block using the control
block below. When the MSTR read operation completes, the state is set to 0. Notice that the
MSTR enable input is powered for the duration of the operation.
Register Content
400100 2 (decimal): Operation type: Read data
400101 0000 (hex): Error status: will be filled in by function
400102 64 (decimal): Length: there are 16 parameters on
each of four axes
400103 129 (decimal): Address in slave (RMC) memory:
This is the address of the first parameter on the
first axis
400104 3 (decimal): Routing 1 (Node address)
400105 1 (decimal): Routing 2 (Data path): This could
have been 1-8
400106 0 (decimal): Routing 3
400107 0 (decimal): Routing 4
400108 0 (decimal): Routing 5
Example (Modbus/TCP)
Suppose that we wish to read the parameters for the first four axes of an RMC whenever we
reach state 1. The RMC has an IP address of 192.168.0.5 and we will use the Modicon
Ethernet/TCP module (140 NOE 211 00) located in the Quantum backplane slot #3. After reading
the parameters we are to return to state 0. The state is stored in holding register 400250, and we
will read the parameters into the holding registers 400500 through 400563. The control block is
located at 400100 to 400108. The following network would be used:
This network waits until the state is equal to 1 and then triggers the MSTR block using the control
block below. When the MSTR read operation completes, the state is set to 0. Notice that the
MSTR enable input is powered for the duration of the operation.
Register Content