4ch DIO-Relay Modbus RS-485 IO Module SS3130 Sielco Sistemi

Description

The SS3130 IO Module is able to acquire up to 4 digital inputs and to drive up to 4 relay outputs. The data are transmitted with MODBUS RTU/ASCII protocol on RS-485 network.

To assure safe operation of the system, the device is equipped with two Watch-Dog timers. In case of alarm, the outputs are forced automatically on the safe configuration. The 2000 Vac galvanic isolation between inputs, outputs, power supply and RS-485 serial line cancels any ground-loop effect noise. This allows you to use the device in worst ambient conditions.
The SS3130 is in compliance to the 89/336/EEC directive on the electromagnetic compatibility. Furthermore, it is housed in a rough self-extinguishing plastic enclosure of 22.5 mm thickness, suitable for EN 50022 standard DIN rail. It is able to acquire up to 4 analogue input signals, data values are transmitted with MODBUS RTU/ASCII protocol on the RS-485 network (RS232 interface is available.)

The SS3130 is designed to work with the MODBUS RTU/ASCII protocol: standard protocol in field-bus. This allows you to directly interface SS3000 series devices to most PLCs and SCADA applications available on the market.

Product Features

Field Bus data acquisition
Master/Slave communication on RS-485 network
MODBUS RTU/ASCII protocol or ASCII protocol
4 digital inputs
4 relay outputs (2 SPDT + 2 SPST)
Watch-Dog alarm
Four ways galvanic isolation 2000 Vac
High accuracy
EMC compliance – CE Mark
In compliance to EN-50022 DIN rail mounting

For the protocol and installation instructions, please see the product specifications sheet and user manual.

Typical @ 25°C and in the nominal conditions

Digital Inputs
Channels	4
Input Voltage (bipolar)	OFF State: 0 to 3 V ON State: 10 to 30 V
Impedance	4.7 KΩ
Digital Outputs
Channels	4
Type	n° 2 SPDT relays n° 2 SPST N.O. relays
Switching Power (max)	2 A @ 250 Vac (resistive load) per contact 2 A @ 30 Vdc (resistive load) per contact
Minimum Load	5 Vdc, 10 mA
Max Voltage	250 Vac (50 / 60 Hz), 110 Vdc
Sample Time	20 ms
Data Transmission (asynchronous serial)	Baud Rate: up to 115.2 Kbps Max Distance: 1.2 Km - 4000 ft.
Power Supply Voltage	18 to 30 Vdc
Power Supply Current Consumption	45 mA @ 24 Vdc
Power Supply Polarity Inversion Protection	60 Vdc max
Isolation	Input - RS485: 2000 Vac 50 Hz, 1 Min. Supply - Input: 2000 Vac 50 Hz, 1 Min. Supply - RS485: 2000 Vac 50 Hz, 1 Min.
Operating Temperature	-10 to +60 °C
Storage Temperature	-40 to +85 °C
Humidity (non condensing)	0 to 90 %
Housing Material	Self-extinguishing plastic
Mounting	EN-50022 DIN rail
Weight	∼ 210 g
EMC	EN 61000-6-2 EN 61000-6-4