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U N I V E R S A L M OTO R C O N T R O L L E R U M C 1 0 0 . 3 | M R P 3 1 . 0 M O D B U S T C P C O M M U N I C AT I O N M O D U L E M A N U A L
Modbus communication and Register Map for UMC100.3
Devices on a Modbus network offer their data in registers to a Modbus master. There is the possibility to read or write single
bits (coils) or whole words (registers).
The following Modbus requests are supported:
Commands
Read binary input values
Write binary output values
Read analog input values
Write analog output values
Read diagnostic data
Return query data
The following table shows in which registers the UMC100.3 data and diagnosis can be accessed:
—
Analog inputs of UMC100.3 acc. to the UMC100.3 manual section
A1 parameters and data structures on a Fieldbus
Register
Data
0x0200
Motor Current in % of I
0x0201
Analog Word (Thermal Load: 0% - 100%)
0x0202
Analog Word (Time to trip in seconds)
0x0203
Analog Word (Time to restart in seconds)
0x0204
Analog Word (Active power in selected scale)
0x0205
DX1xx DI7
-
0x0206
U Imbal. warn
Earth fault
warning
—
Analog outputs of UMC100.3 acc. to the UMC100.3 manual section
A1 parameters and data structures on a Fieldbus
Register
Data
0x0300
Analog Word
0x0301
Analog Word
0x0302
Analog Word
0x0303
Analog Word
The function of some bits can differ in case the control functions Actuator 1...4, Overload Relay or Transparent are configured. Please refer to the UMC100.3 manual in this case.
MODBUS Function Codes
FC 1 Read Coils
FC 2 Read Discrete Inputs
FC 15 Write Multiple Coils
FC 3 Read Holding Registers
FC 4 Read Input Registers
FC 16 Write Multiple Registers
FC 3 Read Holding Registers
FC 4 Read Input Registers
FC 8 Sub Function 00
(0% - 800%)
e
DX1xx
DX1xx
DI6
DI5
-
Run Time
Exceeded
U Imbal. trip
Undervoltage
warn
Earth fault
Cooling time
trip
running
DX1xx
DX1xx
DI4
DI3
Out of
Torque Open
Position
Undervoltage
Underpower
trip
warn
-
THD warning
Starting address
0000 Hex
0100 Hex
0200 Hex
0300 Hex
2000 Hex
n.a.
DX1xx
DX1xx
DI2
DI1
Torque Closed
End Pos Open
Underpower
Overpower
trip
warn
No start
1 start left
possible
DX1xx
DI0
End Pos
Closed
Overpower
trip
More than 1
start left
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