MR-DIO4/2-IP65 Modbus RTU 230 V

Description

The Modbus module inan IP65 housing with 4 digital inputs and 2 relay outputs with manual control was developed for decentralized switching tasks. It is suitable for accommodating, for example, light switches and window contacts in a room, switching two light strips or controlling louvers. It can also be used to control 2 motorized fire dampers. In this case it is necessary to protect the relay contacts by appropriate load-dependent measures. The inputs have to be connected to potentialfree contacts. The inputs and outputs can be switched and scanned by means of standard registers via a Modbus master. Module address, bit rate and parity are set with two rotary switches. Bit rate and parity are also set by software.

Technical Data

General Data

Protocol

Modbus RTU

Addressing range

00 to 99

Transmission rate

1200 to 115200 bit/s, Factory setting 19200 bit/s Even

Bus interface

RS485 two wire bus with potential equalization in bus or line topology terminate with 120 Ohm

Operating voltage

230 V +/- 10 %

Current consumption

12 mA

Relative duty cycle

100 %

Inputs

Digital inputs

Voltage input

30 V AC/DC

High signal recognition

more than 8 V AC/DC

Outputs

Output contacts

2 changeover contacts (DPST)

Switching voltage max.

250 V AC

Continuous current max.

10 A per relay (65 A for 20 ms) max. current via terminal "11" 10 A

Housing

Dimensions (W x H x D)

160 x 40.7 x 120 mm

Weight

350 g

Mounting position

any

Mounting

directly on a flat surface 8 knock-out openings for M12 and M16 cable glands

Operation

23 °F to 131 °F (-5 °C to 55 °C)

Storage

-4 °F to 158 °F (-20 °C to 70 °C)

Type of protection (IEC 60529)

IP65

Display

Operating and bus activity

green LED

Error indication

red LED

Status of inputs and outputs

yellow LED's

Check US distributor inventory

Part number

Part number:

1108330526IP

EAN:

4251122197390

Downloads

FAQ's

What can I do if the red ERROR LED on the module lights up or there is no communication?

There are several possible causes, please check the following:

- Operating voltage (A1 / A2) connected and sufficient for the device.
- BUS (A- / B+) connected and not reversed. Pay attention to (- / +), not to A/B.
- Address (rotary switch) set correctly, must not occur twice or be 0.
- Bit rate and parity (rotary switch) set correctly, only possible in programming mode (see mounting note).
- Shielded and twisted cable used.
- Termination resistor (120 Ω) set on both sides.
- Bias resistors available once on the BUS.
- Timeout high enough for all participants to respond (approx. 10 ms).

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Additional Information

I/O components – Automation in buildings, systems and machinery