Delta AH500 - 11.1.3 Executing a PLC Link through the Program in ISPSoft; 11.1.3.1 Parameters Related to a PLC Link

AH500 Hardware and Operation Manual
11-20
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.
Master station
Slave station 1
Slave station 2
…
Slave station 32
Read
Write
Read
Write
…
Read
Write
Latched area
Address in
the master:
The device
address into
which the
data is read
(SR1404 and
SR1405)
Address in
the master:
The device
address from
which the
data is written
(SR1468 and
SR1469)
Address in
the master:
The device
address into
which the
data is read
(SR1406 and
SR1407)
Address in
the master:
The device
address from
which the
data is written
(SR1470 and
SR1471)
…
Address in
the master:
The device
address into
which the
data is read
(SR1466 and
SR1467)
Address in
the master:
The device
address from
which the
data is written
(SR1530 and
SR1531)
Address in
the slave:
The device
address from
which the
data is read
(SR1532 and
SR1533)
Address in
the slave:
The device
address into
which the
data is written
(SR1596 and
SR1597)
Address in
the slave:
The device
address from
which the
data is read
(SR1534 and
SR1535)
Address in
the slave:
The device
address into
which the
data is written
(SR1598 and
SR1599)
…
Address in
the slave:
The device
address from
which the
data is read
(SR1594 and
SR1595)
Address in
the slave:
The device
address into
which the
data is written
(SR1658 and
SR1659)
Number of
data which is
read from the
slave
(SR1660)
Number of
data which is
written into
the slave
(SR1692)
Number of
data which is
read from the
slave
(SR1661)
Number of
data which is
written into
the slave
(SR1693)
…
Number of
data which is
read from the
slave
(SR1691)
Number of
data which is
written into
the slave
(SR1723)
Device type
(SR1340)
Device type
(SR1372)
Device type
(SR1341)
Device type
(SR1373)
…
Device type
(SR1371)
Device type
(SR1403)
Type of slave 1 (SR1724)
Type of slave 2 (SR1725)
…
Type of slave 32 (SR1755)
Address of slave 1 (SR1756)
Address of slave 2 (SR1757)
…
Address of slave 32 (SR1787)
PLC Link flag (SM1392)
PLC Link flag (SM1393)
…
PLC Link flag (SM1423)
Non-latched area
Data exchange flag (SM1424)
Data exchange flag (SM1425)
…
Data exchange flag (SM1455)
Read error
flag
(SM1456)
Write error
flag
(SM1488)
Read error
flag
(SM1457)
Write error
flag
(SM1489)
…
Read error
flag
(SM1487)
Write error
flag
(SM1519)
The data reading is complete.
(ON->OFF) (SM1520)
The data reading is complete.
(ON->OFF) (SM1521)
…
The data reading is complete.
(ON->OFF) (SM1551)
The data writing in the PLC
Link is complete. (ON->OFF)
(SM1552)
The data writing in the PLC
Link is complete. (ON->OFF)
(SM1553)
…
The data writing in the PLC
Link is complete. (ON->OFF)
(SM1583)
*. 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 M0~M8191,