6
Modbus
Modbus TCP is available on the optional Ethernet port and Modbus RTU is available on the standard RS485 port or
on the optional RS232 or RS485 port.
Modbus table for function 03
Registers 40001 and 40002 show the display value shown in the same units the lowest time value in the display
(no decimal point shown) e.g. 6.5 seconds would show as 65 i.e. 65 tenths of a second, 1 minute and 3.5 seconds
would show as 635. Registers 40003 and 40004 show the number of complete seconds. Registers 40005 and 40006
show the number of complete milli seconds.
Register
Name
Data Type
Units
Func
Address
R/W
40001/2
Display
32 bit Integer
0x03
0x0000, 0x0001
R
40003/4
Seconds
32 bit Integer
0x03
0x0002, 0x0003
R
40005/6
Milliseconds
32 bit Integer
0x03
0x0004, 0x0005
R
Modbus table for function 01
Func Code
Description
Register Range
Address Range
0x01
Read Coil Status
1 - 9999
0x0000 - 0x270E
0x03
Read Holding Registers
40001 - 49999
0x0000 - 0x270E
LD5TMRMAN-1.1-0
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