Yaskawa PLC-5 - Manual (Page 16)

GENERAL OPERATION
13 MicroTrac to PLC
5/2/95- RD 3196-10
MicroTrac to
PLC (NUMO) Numeric outputs from a PAC schematic to a PLC can be visualized as shown in
Figure 6. Numeric output (NUMO) PAC blocks send a numeric value from the
drive to the remote device specified by the node, channel, and sub channel defined
for that block. The node number for a single PLC gateway is typically 200.
The channel number here has a similar meaning to that discussed above for the
logic function, except that the leading digit must be a 1. The SmartMUX board
only supports Numeric block transfers to slot 0 and group 0. Thus:
LAN CHANNEL 130 = RACK 3, GROUP 0
The PAC block’s sub channel number will be in decimal, and will normally range
from 0 through 63. This number represents the location of the numeric output data
in the Block Transfer Read data file. Up to 64 values may be processed in one
Block Transfer operation.
Every numeric value exchanged between the drive system and the PLC must have
a unique value for channel and subchannel.
Figure 6. PAC Numeric Output to PLC
TYPICAL NUMO
104-D
NUMO Node Chan. Sub.
200 110 19
LAN Cable
DATA
PLC Gateway
Remote
I/O Cable
PLC Ladder
Logic
FF
Block
Transfer
Read