Executing A Plc Link Through The Program In Ispsoft; Parameters Related To A Plc Link - Delta Electronics AH500 Operation Manual

A H 5 0 0 O p e r a t i o n M a n u a l

11.1.3 Executing a PLC Link through the Program in ISPSoft

Users can execute a PLC Link through the program in ISPSoft. The setting of the parameters related to a PLC
Links is described in this section. Users can execute a PLC Link efficiently.

11.1.3.1 Parameters Related to a PLC Link

1. The special data registers and the special auxiliary relays for slave 1~slave 32 are described below.
Slave station 1
Read
Address in Address in
the master: the master:
The device The device
address into address from
which the which the
data is read data is written
(SR1404 and (SR1468 and
SR1405) SR1469)
Address in Address in
the slave: the slave:
The device The device
address from address into
which the which the
data is read data is written
(SR1532 and (SR1596 and
SR1533) SR1597)
Number of Number of
data which is data which is
read from the written into
slave the slave
(SR1660) (SR1692)
Device type Device type
(SR1340) (SR1372)
Type of slave 1 (SR1724)
Address of slave 1 (SR1756)
PLC Link flag (SM1392)
Data exchange flag (SM1424)
Read error Write error
flag flag
(SM1456) (SM1488)
The data reading is complete.
(ON->OFF) (SM1520)
The data writing in the PLC
Link is complete. (ON->OFF)
(SM1552)
*. SM1424~SM1583 are read-only devices.

Start address in the master station: The start address in the master station is a device address. The
default start address in the master station is D0. If the AH500 MODBUS communication protocol is
used, the start address in the master station is an AH500 MODBUS device address. If the standard
MODBUS communication protocol is used, the start address in the master station is a MODBUS
device address. The data in the device addresses in the master station starting from the start address
in the master station is sent to a slave, and the data sent by a slave station is stored in the devices in
the master station starting from the start address in the master station. If the communication protocol
used is the standard MODBUS communication protocol, only M0~M8191 and D0~D32767 can be
used. If the communication protocol used is the AH500 MODBUS communication protocol, only
11 - 2 0
Master station
Slave station 2
Write Read
Address in
the master:
The device
address into
which the
data is read
(SR1406 and
SR1407)
Address in
the slave:
The device
address from
which the
data is read
(SR1534 and
SR1535)
Number of
data which is
read from the
slave
(SR1661)
Device type
(SR1341)
Type of slave 2 (SR1725)
Address of slave 2 (SR1757)
PLC Link flag (SM1393)
Data exchange flag (SM1425) ...
Read error
flag
(SM1457)
The data reading is complete.
(ON->OFF) (SM1521)
The data writing in the PLC
Link is complete. (ON->OFF)
(SM1553)
... Slave station 32
Write ... Read
Address in Address in
the master: the master:
The device The device
address from address into
...
which the which the
data is written data is read
(SR1470 and (SR1466 and
SR1471) SR1467)
Address in Address in
the slave: the slave:
The device The device
address into address from
...
which the which the
data is written data is read
(SR1598 and (SR1594 and
SR1599) SR1595)
Number of Number of
data which is data which is
written into read from the
...
the slave slave
(SR1693) (SR1691)
Device type Device type
...
(SR1373) (SR1371)
... Type of slave 32 (SR1755)
... Address of slave 32 (SR1787)
... PLC Link flag (SM1423)
Data exchange flag (SM1455)
Write error Read error
flag ... flag
(SM1489) (SM1487)
The data reading is complete.
...
(ON->OFF) (SM1551)
The data writing in the PLC
... Link is complete. (ON->OFF)
(SM1583)
Write
Address in
the master:
The device
address from
which the
data is written
(SR1530 and
SR1531)
Address in
the slave:
The device
address into
which the
data is written
(SR1658 and
SR1659)
Number of
data which is
written into
the slave
(SR1723)
Device type
(SR1403)
Write error
flag
(SM1519)