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MM16DO

MM16DO - DIGITAL OUTPUTS

This module has 16 open collector (NPN) digital outputs. The outputs may be used to drive lamps or external relays when more drive capability is required. The outputs are isolated from the logic and they share a common negative terminal. 

The module may be used as either a slave or master on the Modbus network. When used with a PC or PLC the module will be configured as a slave. When used with a MM16DI module in a point-to-point configuration, the DIP switch 9 must be turned on to set the module up as a master. In this mode the MM16DO module will automatically read the information from the MM16DI module and write the input status to the outputs. 

When used as a slave module, the outputs are written to by the Modbus master device such as a PC or PLC. Each output can be individually switched on or off, or all outputs can be set up at the same time by writing a single number to the output register which represents the status of all outputs. 

An output watchdog timer can be configured to switch off all the outputs if there has been no communications with the module for up to 255 seconds. A value of 0 seconds will disable this timer and the outputs will remain in the last programmed state. 

SPECIFICATIONS

Power Supply: (Logic) 10 - 26 Vdc @ 50 mA
                      (Field) 10 - 26 Vdc @ 50 mA

Outputs: Open Collector NPN
            Maximum Voltage 36 Vdc
            Maximum Current 100 mA
            Isolation 1500Vrms between field and logic
            Vceon 1.1V Max.

Connector: 11 Pin Connector on rear of unit
                10 Way screw connector on front
WIRING
SWITCH SETTINGS

SWITCH

FUNCTION

DESCRIPTION
     

1

NODE ID

Node ID’s from 0 to 127 are set up using switches 1 to 7.

2

NODE ID

3

NODE ID

  

4

NODE ID

  

5

NODE ID

  

6

NODE ID

  

7

NODE ID

  

8

-

Not used.

9

MODE

Selects Master or Slave Mode. Master mode is used when the module is connected to a single digital input module. Slave mode is used when the module is to be polled either by the I/O Mapper or by a PC.

10

BAUD RATE

Selects 9600 (off) or 19200 BAUD (on)
 
DIAGNOSTIC UNIT MENU FORMAT

                                                     

 

 

 

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