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16.32 MODBUS RTU TCP/IP
16.32.1 HMI Setting – Ethernet port hardware option must be present
Communication parameters must be set the same as those of the PLC. The following settings are recommended.
Parameter
Recommended Setting Notes
Serial I/F port
Ethernet
HMI station No.
0
Not used
PLC station No.
1
Options: 0-255 - As per PLC setting
Comm. delay (10msec)
0
Request delay: 0~999 @10 milliseconds. Use when the PLC requires a
delay between requests. Not implemented in simulation mode.
Multiple HMI
Master
Connect I/F
Ethernet
Local IP address
The IP address of the HMI unit
Server IP address
The IP address of the PLC
Subnetwork Mask
IP Mask
Default Route IP address
The IP address of the main server
16.32.2 PLC Setting
PLC ID number must match setting in MMI
16.32.3 Wiring
Use the same wiring as the MODBUS RTU driver. CAT-5 class through cable to Hub or crossover cable to Controller.
16.32.4 Device address
Bit/Word
Type
Address Format
Range
Notes
B
1x
ddddd
ddddd: 1~9999
Input bits (Read only)
B
0x
ddddd
ddddd: 1~9999
Internal Coils
B
3x_bit
ddddbb
dddd: 1~9999 bb: 0~15
Internal Input Coils (Read only)
B
4x_bit
ddddbb
dddd: 1~9999 bb: 0~15
Internal Register Coils
W
3x
ddddd
ddddd: 1~9999
Input Registers (Read only)
W
4x
ddddd
ddddd: 1~9999
Internal Registers
W
5x
ddddd
ddddd: 1~9999
4x type with Double Words swapped
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
Summary of Contents for MMI-1500
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