Specifications
Digital Outputs
4 channels, P-switching, 0.5 A max output current
DO Switching Frequency
1 kHz @ 24 VDC ohmic load, 1 kHz lamp load (12 W)
DO Output Filter
Adjustable delay: no delay, 500 ms, 1 s, 2 s, 5 s, 10 s
DO Safe Value
Yes, programmable
DO Protection
Reverse polarity protection, short-circuit proof, per-channel diagnostics
Analog Inputs
Up to 4 differential channels
Voltage Input
+/-1 V, +/-5 V, +/-10 V, +/-100 mV, +/-500 mV
Current Input
+/-20 mA, 0-20 mA, 4-20 mA
Thermocouple Types
J, K, T, E, R, S, B, N
RTD Types
Pt100 (IEC/JIS), Pt1000, -200 to +600 °C
Resolution / Sampling
16-bit, 8 Hz sampling rate
Accuracy
+/-0.1% of FSR
Serial Port
1x 4-wire / 2-wire RS-485, software selectable
Baud Rate
1,200 to 115,200 bps
Protocols
DCON, Modbus/RTU, Modbus/ASCII
Isolation
2 kV
Power Input
12/24 VDC
Power Consumption
2.29 W @ 12 V, 3.14 W @ 24 V
Dimensions
160 x 106 x 27 mm
Mounting
DIN rail
Operating Temperature
-20 to +70 °C
Certifications
CE, FCC
Overview
The ACROSSER SCI-RM44 is a DIN-rail remote I/O module that combines digital output, analog input and serial gateway functions in a single 27 mm-wide unit. Four P-switching digital outputs sink up to 0.5 A each with programmable safe values, reverse-polarity protection and per-channel diagnostics.
The analog front end accepts up to four differential channels in voltage (+/-100 mV to +/-10 V), current (0-20 mA, 4-20 mA) or temperature (thermocouple types J/K/T/E/R/S/B/N and Pt100/Pt1000 RTD) form, converting at 16-bit resolution with 8 Hz sampling and +/-0.1% of full-scale accuracy. An isolated 2 kV RS-485 port speaks DCON and Modbus/RTU or ASCII at up to 115,200 bps.
Key Benefits
16-bit analog input with thermocouple and RTD support, 4x 0.5 A digital outputs with programmable safe values, 2 kV isolated RS-485 with Modbus/DCON, and a wide -20 to +70 °C DIN-rail package.
Applications
Process-monitoring and data-acquisition panels, SCADA remote I/O, temperature and load-cell measurement, building-automation control, and RS-485 Modbus field-bus expansion.
Request a Quote — ACROSSER SCI-RM44 — DIN-RAIL REMOTE I/O MODULE, 4DO / 4AI / RS-485
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