584/984 Addressing Mode - Automation Direct T1K-MODBUS-M User Manual

3–4
MODBUS RTU Functions and Addressing Modes

584/984 Addressing Mode

Using the
T1K–MODBUS
with a 584 / 984
MODBUS Master
Modbus
Data Type Data Type
Modbus Data Type Modbus Data Type
Input Register Input Register
Hold Register Hold Register
Note: ModScan32 is a Windows based application program that can be used as a
MODBUS master to access and change data points in a connected slave device
(T1K–MODBUS). The utility is ideally suited for quick and easy testing of MODBUS
network slave devices. Visit www.win–tech.com to download a free ModScan32 trial
demo and for more information on ModScan32.
The 584 / 984 Addressing mode is set by placing Dip Switch 7 in the OFF position. The
following decimal memory locations are supported by the T1K–MODBUS base controller in
the 584 / 984 Addressing Mode.
•
1 – 1024 Discrete Outputs
•
10001 – 11024 Discrete Inputs
•
30001 – 30128 Analog Input Registers
•
30201 – 30264 Bit Input Registers
•
40001 – 40128 Analog Output Registers
•
40201 – 40264 Bit Output Registers
Range (Decimal)
1 – 1024
Coil Coil
1025 – 9999
10001 – 11024
Input Input
11025 – 19999
Range (Decimal)
Analog Input 30001 – 30128
Input Register 30129 – 38999
Bit Input Register 30201 – 30264
Input Register 39129 – 39999
Analog output 40001 – 40128
Hold Register 40129 – 40200
Bit Output 40201 – 40264
Register
Hold Register 40265 – 49000
Hold Register 49001 – 49128
Hold Register 49129 – 49999
T1K–MODBUS
Points Memory Type
1024 Discrete Output
– not supported
1024 Discrete Input
– not supported
V Memory Range
Words Channel Memory Type
(16– bit) (32– bit)
128 64 Analog Input Register
– – not supported
64 – Discrete Input Bit
Register
– – not supported
128 64 Analog Output
Register
– – not supported
64 Discrete Output Bit
Register
– – not supported
128 – Special Register
– – not supported