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Installation manual
CNC 8055
CNC 8055i
6.
MACHINE PARAMETERS
SOFT: V02.2X
PLC Parameters
Expansion modules and remote modules numbering examples.
Let's suppose a system made up of an axes board with 40I/24O and two expansion modules
with 64I/32O available in each one of them and the following remote modules.
Remote module in node 1, with 48 inputs and 32 outputs.
Remote module in node 2, with 24 inputs and 16 outputs.
The inputs/outputs of the first module (axis board) cannot be set by parameter; therefore, the
inputs must be numbered from I1 on and the outputs from O1 on.
We wish the inputs and outputs to be sequential starting with the local ones, then the expansion
modules and then the remote modules.
First expansion module Second expansion module
NUILO1=41 NUILO2=0
NUOLO1=25 NUOLO2=0
Remote module (Node 1) Remote module (Node 2)
IOCANID1=1 IOCANID2=2
ICAN1=48 ICAN2=24
OCAN1=32 OCAN2=16
NUICAN1=169 NUICAN2=0
NUOCAN1=89 NUOCAN2=0
The axis board is assigned inputs I1-40 and outputs O1-24.
The first expansion module assigned inputs I41 through I104 and outputs O25 through O56.
The second expansion module assigned inputs I105 through I168 and outputs O57 through O88.
The first remote module (node 1) is assigned inputs I169-216 and outputs O89-120.
The second remote module (node 2) is assigned inputs I217-240 and outputs O121-136.
The inputs of the first expansion module are numbered sequentially after the value assigned to
parameter NUILO1 (I41) chosen with the restriction (8n+1). The inputs of the second expansion
module are numbered sequentially after the last input used in the first expansion module (I104+1
= I105). Follow the same procedure for the outputs.
The inputs of the first remote module are numbered sequentially after the last input of the second
expansion module (I168+1=I169) The inputs of the second remote module are numbered
sequentially after the last available input of the first remote module (I216+1=I217). Follow the
same procedure for the outputs.
The total limit of inputs (local + remote) is 512.
The total limit of outputs (local + remote) is 512.
Warning: The order of local I/O modules corresponds with the numbering of their internal switch,
not with the physical position of the modules.
In the previous example, the I/O will be ordered so expansion modules 1 and 2 come first and then
remote modules 1 and 2. This order is not compulsory, these modules may be ordered as desired.
This way, the remote modules could be numbered first and then the expansion ones or intercalating
one of each.
The values of the PLC parameters mentioned earlier should be multiple of 16 for best managing the
inputs and outputs in time.
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