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1 Supplementary Operating Manual

9 of 48

AmaControl

2301.83/04-EN

1.3.6 Modbus termination

Termination

Fig.5: Setting terminating resistor for Modbus RTU via DIP switch 8

Table11: Setting terminating resistor

DIP switch 8 Address

ON Activated

OFF Deactivated (factory setting)

1.3.7 Modbus start register

The Modbus start registers of the different AmaControl devices when accessing

Modbus INT 600 DM Gateway are as follows:

Table12: Modbus start register

Designation Device type Start register Direct

access

via Modbus

interface

Start register Access

via DP port of INT

600 DM Gateway

AmaControl L xxA712 ✘ 10752

AmaControl 3 xxA701 ✘ 8192

AmaControl 4 xxA721 8192 10752

AmaControl L, 3

AmaControl L and AmaControl 3 can only be read out via INT 600 DM Gateway with

function code FC4 (Read Input Register).

Further information on Modbus protocols

AmaControl 3: (ðSection1.4.4,Page35)

AmaControl L: (ðSection1.4.1,Page10) .

AmaControl 4

AmaControl 4 can only be read out via INT 600 DM Gateway with function code (FC4)

(Read Input Register). The register addresses in Table (ðSection1.4.3,Page30)

and (ðSection1.4.2,Page20) apply. Direct access via the separate Modbus

interface: The register addresses according to Modbus supplementary operating

manual (ðSection1.4.2,Page20) are valid. Parameter settings must be read with

(FC3). Operating values are read with (FC4).

The Modbus RTU masters used must support (FC3) and (FC4) for readout, if all

AmaControl device types are used. Parameters in the AmaControl cannot be written

via Modbus. Writing parameters in the INT 600 DM Gateway is possible with (FC10).

KSB AmaControl INT 600 DM User Manual

Questions and Answers: