3 AI, 1 AO, 8DI, 2 Relay Out (V) Module-IO14B

Quick Information

This module provides 3x analog input channels (voltage), 1x analog output channel (current), 8x digital input channels (10-30VDC – includes 2x 5kHz counters) and 2x relay output channels. DI support also Counters.

The Brodersen LB2 modules can be used with the RTU32N and RTU32M series products. The I/O modules are in two parts, a bottom part containing the backplane bus, and a top part containing the I/O board and logic. All LB2 I/O modules are hot-pluggable and equipped with a 200 MHz processor to handle filtering, de-bouncing and logic processing of I/O. Module firmware updates are managed by the RTU using Brodersen Worksuite.

Use only genuine Brodersen bus cables for connection to Brodersen RTUs and extension of I/O module blocks. The LB2 connection cables are made to handle the power and shielding requirements of the LB2 bus communications. The maximum overall length of the complete system is 30m. Each I/O module & Power supply module is calculated as 2cm. The cables are as their length indicates, e.g. UCC-610/100 cable is 100 cm. The maximum number of I/O modules on one LB2 Bus is 60

3 channels (differential analog inputs), with 16-bit resolution are provided.
  • Current mode: 0/4mA to 20mA
  • Current impedance: 250 Ohm ±0.1%
  • Effective resolution: 16 bit
  • ADC resolution: 24 bit
  • Update time: 10ms (for 3 channels)
  • Accuracy (at 25°C): ±0.1%
  • Isolation: At least 1KV (1 min.)

Analog Output

1 channel of analog output with 16-bit resolution is provided. The channel has a current output and requires 10-30VDC field power.

  • Output range: 0/4 to 20mA
  • Max load impedance: 1KΩ
  • Resolution: 16 bit
  • Accuracy (at 25°C): ±0.1%
  • Isolation: At least 1KV

Relay Outputs

2 mechanical non-latching relay outputs, SPDT, are provided.

  • Load voltage: Max 125 VDC
  • Load current resistive: 0.25A @ 125VDC,
  • 2A @ 30VDC
  • Output delay: 5ms (typical)
  • Output isolation: 2KV (1 minute)

Digital Inputs

8 bipolar optical isolated digital inputs for 12..24VDC are provided. Inputs are isolated from each other and electronics.

Inputs 0..5 will provide software counters, with up to 100 Hz counting frequency @ 50% duty cycle. Inputs 6 and 7 will provide high-speed hardware counters, with up to 5kHz counting frequency at 50% duty cycle.

A user programmable debounce filter, in 1ms units, is provided for each digital input, to filter out noise or mechanical relay bounce.

DI Input voltage:
Input 0..5 Activated 10 – 30 VDC.

Deactivated Max 3 VDC.
Input 6..7 Activated 5 – 30 VDC.

DI Input current: Deactivated Max 2 VDC.

  • Input 0-5 typical 2.5 mA @ 12 V
  • Input 0-5 typical 5 mA @ 24 V
  • Input 6-7 typical 4 mA @ 12 V
  • Input 6-7
  • typical 8 mA @ 24 V
Input delay: 100 µs typical.
Counters (DI 6-7) Up to 5kHz @10-30VDC
Isolation: 2KV (1 minute)