Communications and I/O
MedWeld 5000 Technical Reference Manual
3 - 3
M-032170
Organization of the
DeviceNet I/O
This module establishes a direct link between the control enclosure and
the host PLC. The module provides the drop to the DeviceNet as well as
communication with the PLC.
The local and safety I/O is wired directly into the cabinet. These
connections provide inputs and outputs for local use and safety
interlocks.
The DeviceNet integration scheme uses some of the same signals as
those used in the discrete I/O operation. The major difference is that the
I/O is transmitted over a DeviceNet link from the DeviceNet module (in
the controller chassis).
I/O Definitions
Note:
This chapter defines all possible I/O. Your timer unit may not provide all
of this I/O, based on the requirements of your application. Refer to the
drawing packet provided for your exact I/O availability and
designations.
Inputs
BINARY SELECT Inputs (#1, #2, #4, #8, #16, & #32)
These inputs select the schedule to be initiated (1 – 63). The
schedule is selected by a combination of these inputs. Each input
has a weighted value (1, 2, 4, 8, 16, or 32). The schedule initiated is
the one selected by adding the weighted values of the active inputs.
For example, to initiate schedule #4, activate BINARY SELECT
Input #4. To initiate schedule #7, activate BINARY SELECT Inputs
#1, #2, and #4 (because 1 + 2 + 4 = 7).
WELD ENABLE Input
When this input is activated, the weld control executes the schedule
that was selected by the BINARY SELECT Inputs.
NOTE:
If your application does not use this input, the control uses a two-cycle
timed delay to determine when all of the inputs are active. (After
receiving a BINARY SELECT or PARITY Inputs, the control delays for
two cycles to assure that all of the desired inputs have become active.)
Summary of Contents for MedWeld 5000
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Page 82: ...Advanced Software Features 5 12 MedWeld 5000 Technical Reference Manual M 032170...
Page 120: ...Hardware Troubleshooting 9 10 MedWeld 5000 Technical Reference Manual M 032170...
