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DVP-ES2/EX2/SS2/SA2/SX2/SE Operation Manual - Programming
b) Set up Master PLC ID by D1121 and the starting slave ID by D1399. Then, set slave ID of
each slave PLC. The ID of master PLC and slave PLC cannot be the same.
Set data length for acc
c) essing. (If data length is not specified, PLC will take default setting or
d)
e)
a polling of PLC LINK..
8.
opped.
slave.
c) Simu as to be set up before enabling PLC LINK. Setting
d) Whe
PLC unication function. If the data length to be written is set to 0, PLC will select
RDs) automatically. In the same way, if data length
be read is set to 0, PLC will select Modbus Function H06 (write single WORD) or Modbus
unction H10 (write multiple WORDs) for PLC LINK communication function.
e) hen M1353 = OFF, PLC LINK accesses the Slave with max 16 words, and the data is
utomatically stored in the corresponding registers. When M1353 = ON, up to 50 words are
the previous value as the set value. For details of data length registers, please refer to the
tables above)
Set starting reference of the Slave to be accessed. (Default setting for starting reference to be
read: H1064 (D100); default setting for starting reference to be written: H10C8 (D200). For
details of starting reference registers, please refer to the tables above)
Steps to start PLC LINK:
Set ON M1354 to enable simultabeous data read/write in
M1355 = ON, Slave status is user-defined. Set the linking status of Slave manually by
M1360~M1375. M1355 = OFF, Slave status is auto-detected. Linking status of Slave
can be monitored by M1360~M1375
Select auto mode on PLC LINK by M1351 or manual mode by M1352 (Note that the 2
flags should not be set ON at the same time.) After this, set up the times of polling cycle
by D1431.
Finally, enable PLC LINK (M1350)
The Operation of Master PLC:
M1355 = ON indicates that Sla
a) ve status is user-defined. Set the linking status of Slave
manually by M1360~M1375.
M1355 = OFF indicates that Slave status is auto-detected. Linking status
b) of Slave can be
monitored by M1360~M1375.
Enable PLC LINK (M1350). Master PLC will detect the connected Slaves and store the
number of
connected PLCs in D1433. The time for detection differs by number of
connected Slaves and time-out setting in D1129.
M1360~M1375 indicate the linking status of Slave ID 1~16
If no slave is detected, M1350 will be OFF and PLC LINK will be st
PLC will only detect the number of slaves at the first time when M1350 turns ON.
After auto-detection is completed, master PLC starts to access each connected
Once slave PLC is added after auto-detection, master PLC cannot access it unless
auto-detection is conducted again.
ltaneous read/write function (M1354) h
up this flag during PLC LINK execution will not take effect.
n M1354 = ON, PLC takes Modbus Function H17 (simultaneous read/write function) for
LINK comm
Modbus Function H03 (read multiple WO
to
F
W
a
2-78