KEP MMI-1500, Installation & Operation Manual

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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]
ModbusExtend.pds
driver must be present in
\drivers
folder
Serial I/F port RS-232, RS485 2W Options: RS-232, RS-485 default/2W/4W – Dependant on PLC hardware
Baud rate 9600 Options: 9600, 19200, 38400, 57600, 115200 - Must match PLC port
setting
Parity Even Options: Odd, Even, None - Must match PLC port setting
Data bits 8 Options: 7, 8 - Must match PLC port setting
Stop bits 1 Options: 1, 2 - Must match PLC port setting
HMI station No. 0 Not used
PLC station No. 1 Options: 0-255 - As per PLC setting if not using Extended Addressing
Comm. delay (10msec) 0 Turn around delay 0~1000 milliseconds.
Note:
Not implemented in
simulation mode. This is used for controllers requiring a delay between
data requests.
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 Range Notes
B 1x ddddd ddddd: 1~65535 Input bits
Note:
Read Only
B 0x ddddd ddddd: 1~65535 Internal Coils
B 3x_bit ddddbb dddd: 1~65535 bb: 0~15 Input Register Coils
Note:
Read Only
B 4x_bit ddddbb dddd: 1~65535 bb: 0~15 Internal Register Coils
W 3x ddddd ddddd: 1~65535 Input Registers
Note:
Read Only
W 4x ddddd ddddd: 1~65535 Internal Registers
W 5x ddddd ddddd: 1~65535 4x type with Double Words swapped*
W 6x ddddd ddddd: 1~65535 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.
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 2 3 4 5 6
Data in word 0x123 0x267 0x3 0x4 0x5 0x0
4x Data 0x2670123 0x40003 0x5
For 5x, it becomes
Address 1 2 3 4 5 6
Data in word 0x123 0x267 0x3 0x4 0x5 0x0
5x Data 0x1230267 0x30004 0x50000