Instruction manual

ManualsBrandsRKC INSTRUMENT ManualsMusical equipmentMA900

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IMR01H02-E3

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1. OUTLINE

Multi-point Digital Controller MA900/MA901 interfaces with the host computer via Modbus or RKC

communication protocols.

In RKC communication, there are the data format (multi-point mode) in which the MA900/MA901 is

used as a multi-point controller (for the MA900: 4 channels and for the MA901: 8 channels) and

that (single mode) used as multidrop-connected with a single controller.

In addition, the three types of communication interfaces are available: RS-422A, RS-485 and

RS-232C.

For reference purposes, the Modbus protocol identifies the host computer as master, the

MA900/MA901 as slave.

!"

RS-422A or RS-485

!"

RS-232C

RS-232C

Host computer

MA900

or

MA901

RS-422A or RS-485

Host computer

MA900

or

MA901

MA900

or

MA901

MA900

or

MA901

MA900

or

MA901

MA900

or

MA901

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