Operation Using a Programmable Logic Controller (PLC)
PLC
PLC
PLC Diagnostic
Diagnostic
Diagnostic Screens
Screens
Screens
These screens may be used to verify PLC
communications by providing a real-time status of all
Network Inputs and Outputs.
PLC
PLC
PLC Diagnostic
Diagnostic
Diagnostic Screens
Screens
Screens 1–7
1–7
1–7
These screens show all PD2K Network Outputs with
their associated register ID, Modbus TCP address,
current value, and any relevant state information.
Figure 15 PLC Diagnostic Screen 1
PLC
PLC
PLC Diagnostic
Diagnostic
Diagnostic Screens
Screens
Screens 8–10
8–10
8–10
These screens show all PD2K Network Inputs with
their associated register ID, Modbus TCP address,
last value written, and any relevant state information.
NOTE:
NOTE:
NOTE: If a Network Input has not been written, it will
show a value of 4294967295 (0xFFFFFFFF) and
state as invalid.
Figure 16 PLC Diagnostic Screen 8
PLC
PLC
PLC Diagnostic
Diagnostic
Diagnostic Screens
Screens
Screens 11
11
11
This screen encapsulates all the registers used
in the Dynamic Command Structure. Arguments
and Command registers are shown on the left.
Acknowledge and Return registers are shown on
the right. When a valid DCS command is sent, the
Return registers will display the appropriate data on
the right side of the screen. This can be used to test
and verify DCS commands with the PLC.
Figure 17 PLC Diagnostic Screen 11
3A4486D
59
