The 32-bit Pulse/Run Meter Unit is an optional extra for the EDAC 700-RTU. This unit features 8 Pulse Accumulator Inputs and 8 Run-Time Meter Inputs or alternatively an additional 20 digital Inputs.The unit fits inside the EDAC 700-RTU Case and derives its power supply from the EDAC 700-RTU. When

configured for Pulse/Run Meter Inputs it will give reports, but will not generate alarms. When configured as Digital Inputs, the EDAC 700-RTU will generate alarm notification calls.

· Input Voltage Range: 0-20V

· Input Trigger Voltage: 0V

· Power Supply: 12V (derived from the EDAC 700)

· Current Consumption: 30mA

· 8 Pulse Accumulator Inputs:

- Input Frequency: 5kHz

- Maximum Count: 4294967296

· 8 Run-Time Meter Inputs:

- Resolution: 0.1 Hour

Electrical Characteristics

Power Supply: 8-15V AC or DC

Current: 30mA max (at 12V)

Inputs: 0-20V

All Inputs are Active Low and have pullup resistors on the board.

Pulse Accumulator

Pulse Accumulator Inputs are on CN4 of the Expansion Unit and they map to inputs 21-28 of the

EDAC 700. These inputs share a common ground with the EDAC 700 COM terminals.

The pulse inputs will count the number of accumulated pulses (momentary contact closures). A

maximum of 8 input channels are available. The sampling rate is 1kHz.

The pulse Totaliser will count to 2^32 (4,294,967,296)

Run Time Meter

Run-Timer Meters are on CN3 of the Expansion Unit and they map to inputs 29-36 of the EDAC

700. These inputs share a common ground with the EDAC 700 COM terminals.

This meter will accumulate the number of hours a particular connected device has been on. This

unit will count once every 6 minutes +/- 0.02% (0.1 of an hour). Again 8 channels will be

available. The Run Time Meters will count to 2^32 (4,294,967,296) The Run Time Meter has an

accuracy of 99.98%

Digital Inputs

In addition to being configured as Pulse Accumulation or Run-Time Meter inputs, all 20 inputs

(21-40) can be used as Digital Normally-Open or Normally-Closed type inputs. Configuration

Settings on the EDAC 700 will define the input type.

Communications

The communications takes place using an RS-232 connection with 8 data bits, no parity, 1 stop

bit and 9600 baud

[Download the Full Manual] to get more details about the technical specifications and configuration of the 32-bit Pulse/Run Meter Unit for the EDAC 700.