Automation Direct Terminal IO

 

Introduction

 

The Catalyst is very well suited to be interfaced to the Automation Direct Terminator I/O (T1K) distributed I/O product. However, there are a few changes that need to be made from the default configuration of each product.

 

Note: This document will refer to certain pages of the T1K User Manual. Please have the manual available when you are ready to make settings changes.

 

 

Setting the Catalyst Protocol Port Parameter

 

The Catalyst Protocol Port is configured for either Ethernet or Modbus. When Modbus is chosen, the Catalyst will be configured for "Even" Parity by default. In order to communicate with the T1K, you will need to change the Parity setting to "Odd."

 

To make the necessary change using Alarmware™, connect to the unit and go to the "Configuration Menu." From the Configuration Menu, select "Devices." Click on the "Protocol Port" tab. The following dialog will appear:

 

 

  1. Change the parity from "Even" to "Odd."

 

 

Terminator I/O Base Controller Settings

 

Most of the Terminator I/O Base Controller settings will be left in their default settings, with the following exceptions:

 

 

 

Modbus Address Mapping (Also applicable for ModbusTCP)

 

Please refer to pages 3-4 of the "T1K Modbus Base Controller User Manual" for the technical details of the T1K Modbus 584/984 addressing.

 

 

Discrete Inputs

 
 

Starting Address

10001

 

Number of Addresses

1024

 

Catalyst SNAs* (Node 1)

1*1*10001 through 1*1*11024

 

Discrete Outputs (Coils)

 
 

Starting Address

00001

 

Number of Addresses

1024

 

Catalyst SNAs* (Node 1)

1*1*00001 through 1*1*01024

 

Analog Inputs

 
 

Starting Address

30001

 

Number of Addresses

64

 

Number of Channels

32

 

Catalyst SNAs* (Node 1)

1*1*30001 through 1*1*30064

 

 

 

Special Note: Analog points occupy 2 consecutive 16-bit integers, but the second of the two are not used. Therefore, the first analog point address is 30001. The second is 30003. The third is 30005, and so on.

 

Analog Outputs

 

 
 

Starting Address

40001

 

Number of Addresses

64

 

Number of Channels

32

 

Catalyst SNAs* (Node 1)

1*1*40001 through 1*1*40064

 

   

 

The special note above for analog inputs also applies to analog outputs.

 

* SNA refers to "Source Net Address" for the Catalyst Channel Setting.

 

 

Catalyst Scaling for Terminator I/O Analog Channels

 

The resolution of Terminator I/O analog points is 14 bits (13 bits plus the sign bit) for inputs, and 12 bits for analog outputs.

 

Available Voltage Spans

Available Current Spans

0-5V

0-20mA

0-10V

4-20mA

+/- 5V

-20 to +20mA

+/- 10V

 

 

Please Note:

  1. As observed in the table above, Automation Direct analog modules allow both positive and negative (bipolar) inputs and outputs. However, the Catalyst cannot monitor negative currents or voltages. For signals monitored by the Catalyst that swing both positive and negative, while the signal is negative the Catalyst will report erroneous readings.
  2. For Voltage inputs, the T1K product does not provide a way to set the gain of the inputs.. Therefore regardless of the desired input voltage span, the resolution is always the same, 1 count in 8192 (or 1.22mV) for inputs and 1 count in 2048 for outputs (or 4.88mV).

 

 

Analog Scaling

 

Scaling to engineering units will depend on the application (water tank level, etc.). Use Alarmware™ to configure your channel settings by first connecting with the Catalyst unit. From the "Configuration" menu, select "Channels." To read a voltage input directly in volts, do the following:

 

 

  1. First enter the SNA for the Analog Input: e.g. 1*1*30001
  2. Set the Violation Criteria for this channel.
  3. Click on the Advanced button.

 

 

  1. Next select "2-point Scaling" from the list of Value Transformations.
  2. Now enter the following scaling data

 

X1=0

Y1=0

X2=8191

Y2=10

 

 

To read a current input directly in mA, do the following:

 

 

  1. First enter the SNA for the Analog Input: e.g. 1*1*30001
  2. Click on the Advanced button.

 

 

 

  1. Next select "2-point Scaling" from the list of Value Transformations.
  2. Now enter the following scaling data

 

X1=0

Y1=0

X2=8191

Y2=20