Rockwell Automation Samsung NX-SCU, Руководство пользователя

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PLC Programming Examples
Self-Test Program for WinFPST
Example of ladder program that performs self-loop at the SCU.
Convenient program for self-test of the SCU.
Operation description
Send data from CH1 and receive it at CH2, and compare the sent and
received data.
Send data from CH2 and receive it at CH1, and compare the sent and
received data.
Y50 turns on when the compared data are not identical.
• Data WRITE method: WinFPST S/W
→
on-line
→
DT0,
DT1 and DT5, DT6 at register monitoring.
Then, verify data at each of DT10, DT11 and DT15,
DT16. (See WinFPST S/W help for detailed
information. )
• DIP SWITCH (DSW) setting must be identical at CH1
and CH2, and the setting is arbitrary.
• PLC system configuration example shows a NX700
PLC system (NX-CPU700, NX-CPU750A, B, C, or D),
with a SCU installed in base backplane slot 3.
• Use 9-pin cable when
RS232C communication checking at CH1 and CH2
of the SCU, and use 2-pin connection when
RS485 communication checking. (See the wiring
IMPORTANT
NX-CPU750B
CP
U
NX-X16D
DC
IN
NX-Y16RV
RY
O
U
T
NX-X16D
DC
IN
NX-SCU
SC
U
NX-Y16RV
RY
O
U
T
System Configuration
(NX-CPU700, NX-CPU750A, B, C, D)
I/O
allocation
Base backplane (5 slots)
X0 ~ XF
Y10 ~ Y1F
X20 ~ X2F
Y50 ~ Y5F
SCU X30 ~ X3F
Y40 ~ Y4F