4ch Current - Voltage Modbus RS-485 IO Module. SS3015I/V

Description

4ch Current – Voltage Modbus RS-485 IO Module from Sielco Sistemi.

It is possible to connect up to +/- 20mA current signals or +/- 10V voltage signals.
By means of a 16 bit converter, the device guarantees a high accuracy and a stable measure versus time and temperature. To ensure the plant safety, two Watch-Dog timer alarms are provided. The 2000 Vac isolation between input, power supply and serial line removes eventual ground-loop effects, allowing the use of the device even in the heavy environmental conditions. SS3015 Series is in compliance with the 89/336/EEC directive on the electromagnetic compatibility.

The device is housed in a rough self-extinguishing plastic container which, thanks to its thin profile of 17.5mm only, allows a high density mounting on EN-50022 standard DIN rail.

The SS3015 Series is designed to work with the MODBUS RTU/ASCII protocol: standard protocol in field-bus; allows to directly interface SS3000 series devices to the larger part of PLCs and SCADA applications available on the market.

Product Features

Field-Bus remote data acquisition
RS-485 Master/Slave communication type
MODBUS RTU/ASCII
4 channel input
Up to +/- 20mA input or +/- 10V input
Watch-Dog Alarm
Remotely Configurable
2000 Vac 3-way Galvanic Isolation
High Accuracy
EMC compliance – CE mark
DIN rail suitable mounting – EN-50022 compliance

For the more information and protocol instructions, please see the Specifications Sheet and User Guide.

Typical @ 25°C and in the nominal conditions.

Input	-20 mA to +20 mA (SS3015-I) -10 V to +10 V (SS3015-V)
Input Calibration	±20 µA f.s. (SS3015-I) ±10 mV f.s. (SS3015-V)
Linearity	±0.1 %
Input Impedance	≤50 Ω (SS3015-I) >100 KΩ (SS3015-V)
Thermal Drift	± 0.005 % / °C f.s.
Rise Time	0.5 to 2 sec
Data Transmission	Baud Rate: 38.4 Kbps Max Distance: 1.2 Km
Warm-up Time	3 min.
Power Supply Voltage	10 to 30 Vdc
Power Supply Current Consumption	30 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	∼ 150 g
EMC	EN 61000-6-2 EN 61000-6-4