15-bit Digital I/O Modules

Digital I/O Modbus Modules - 15 Bit

The D1700M digital I/O modules allow a host computer to control thousands of digital I/O points from one serial port when using RS-485 and repeaters in Modbus RTU format. When using RS-232 in Modbus format you are limited to one module. The status of inputs and outputs is communicated to the host in either Modbus RTU or DGH ASCII format using RS-232 or RS-485 serial communications.

All user selectable options (address, baud rate, etc.) are done through the communications port and are stored in nonvolatile EEPROM memory.

D1711M and D1712M

The D1711M and D1712M Digital I/O modules contain 15 user-selectable input/output bits. The bits can be individually programmed as digital inputs or digital outputs. A user-programmable Initial value can be assigned to each digital output bit, to turn "on" or "off" on power-up.

The modules contain a communications "watchdog" timer that can move the digital outputs to a safe-condition in the event of a communications link failure.

The D1711M contains an RS-232 serial output and the D1712M contains an RS-485 serial output.

Digital Inputs
	Up to 15 Digital Inputs.
	Input Levels: 0-30Vdc.
	Input High level, 3.5V min.
	Input Low Level, 1.0V max.

Digital Outputs
	Up to 15 Digital Outputs.
	Open-collector to 30Vdc.
	Max Load: 100mA per bit.
	VSat: 1.0Vdc @ 100mA.

Communications
	Modbus RTU Protocol.
	Baud Rate: 300-115,200.
	247 modules per port.
	Parity: Odd, Even, None.

D1711M

D1712M

D1711M & D1712M

Documentation Links

Mechanical Dimensions

Download Utility Software

Application Software

Digital I/O Modules:
D1711M	15 I/O Bits, RS-232
D1712M	15 I/O Bits, RS-485

Accessories:
CA-3	RS-232 Serial Cable, 9 Pin-F to tin leads
MK-1	DIN-Rail Mounting Kit
PS-3	+24.0Vdc @ 0.42 amps 100-240VAC, Wall Mount Power Supply
Kepware	KepServer OPC Software
A1000-115	AC Powered, 115VAC, RS-485 Converter