# Remote I/O R3 Series: DC Current Input Module (R3-SS8)

## Ordering Information

· Model Code: R3-SS8[1][2] (specify codes for [1] and [2])
· Communication Mode: S (Single), W (Dual)
· Options:
- /CE: CE marking
- /Q: Specifies additional options (e.g., coating, factory setting)
· Coating Options: /C01 (Silicone), /C02 (Polyurethane), /C03 (Rubber)
· Factory Setting: /SET: Preset according to Ordering Information Sheet

## Input Specifications

· DC Current Range: -20 to +20 mA, 0 to 20 mA, 4 to 20 mA
· Input Resistance: 66.5 Ω
· Channels: 8 (isolated)
· Conversion Rate: Selectable (160/80/40/20 ms)
· Data Range: 0 to 10000

## General Specifications

· Connection: Via Installation Base (model: R3-BSx)
· Isolation: Input 1-8 to internal bus or power
· Indicators:
- RUN: Red (Bus A), Green (Bus B), Amber (Both)
- ERR: Red (AD converter failure)

## Installation

· Operating Temperature: -10 to +55°C
· Operating Humidity: 30 to 90% RH
· Weight: 250 g

## Performance

· Accuracy: Varies by range (see table in specification sheet).
- -20 to +20 mA: ±0.05%
- 0 to 20 mA: ±0.1%
- 4 to 20 mA: ±0.1%
· Dielectric Strength: 1000V AC @ 1 minute

## Key Features

· Caution: Unused input channels require proper configuration to prevent errors.
· Standards & Approvals: Complies with EMC and RoHS directives.
· Dual Redundant Configuration: Support for Internal Bus A and B.