Modbus Rtu Extend V3; Modbus Rtu Extend [Pds] - KEP MMI-1500 Installation & Operation Manual

16.31 MODBUS RTU Extend [PDS]

16.31.1 HMI Setting
Communication parameters must be set the same as those of the PLC. The following settings are recommended.
Parameter Recommended Setting Notes
PLC Type Modbus RTU Extend
[PDS V3.01]
Serial I/F port RS-232, RS485 2W
Baud rate 9600
Parity Even
Data bits 8
Stop bits 1
HMI station No. 0
PLC station No. 1
Comm. delay (10msec) 0
Supports Extended Address mode.
16.31.2 PLC Setting
PLC ID number must match setting in MMI
16.31.3 Wiring
Use the same wiring as the MODBUS RTU driver.
16.31.4 Device address
Bit/Word Type Address Format
B 1x
B 0x
B 3x_bit
B 4x_bit
W 3x
W 4x
W 5x
W 6x
Note: The Controller's memory range may vary within the range supported by the driver. Use appropriate addresses.
*NOTE: Address type "5x" is mapped to 4x Internal Registers. 5x register types are the same as "4x" except "5x" double
word data is swapped.
For example,
If 4x has the following information
Address 1
Data in word 0x123
4x Data 0x2670123
For 5x, it becomes
Address 1
Data in word 0x123
5x Data 0x1230267
ModbusExtend.pds driver must be present in \drivers folder
Options: RS-232, RS-485 default/2W/4W – Dependant on PLC hardware
Options: 9600, 19200, 38400, 57600, 115200 - Must match PLC port
setting
Options: Odd, Even, None - Must match PLC port setting
Options: 7, 8 - Must match PLC port setting
Options: 1, 2 - Must match PLC port setting
Not used
Options: 0-255 - As per PLC setting if not using Extended Addressing
Turn around delay 0~1000 milliseconds. Note: Not implemented in
simulation mode. This is used for controllers requiring a delay between
data requests.
Range
ddddd ddddd: 1~65535
ddddd ddddd: 1~65535
ddddbb dddd: 1~65535 bb: 0~15
ddddbb dddd: 1~65535 bb: 0~15
ddddd ddddd: 1~65535
ddddd ddddd: 1~65535
ddddd ddddd: 1~65535
ddddd ddddd: 1~65535
2 3
0x267 0x3
0x40003
2 3
0x267 0x3
0x30004
Input bits Note: Read Only
Internal Coils
Input Register Coils Note: Read Only
Internal Register Coils
Input Registers Note: Read Only
Internal Registers
4x type with Double Words swapped*
4x type that uses single word write commands
instead of multiple word write commands like 4x
and 5x types. Limit 6x types to single word objects
only.
4 5
0x4 0x5
0x5
4 5
0x4 0x5
0x50000
273
Notes
6
0x0
6
0x0