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7 - module calibration, Chapter objective, Tools and equipment – Rockwell Automation 1791-XXXX ANALOG BLOCK I/O User Manual

Page 56: Calibrating your module, Module calibration

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Chapter

7

7-1

Module Calibration

In this chapter we tell you how to calibrate your module.

To calibrate your analog module, you will need the following tools and
equipment:

Tool or Equipment

Description

Precision Voltage Source

0-10V, 1

µ

V resolution

Precision Multimeter

25mA, 1

µ

A resolution

10V, 1

µ

V resolution

Programming Terminal

and Interconnect Cable

Programming terminal for A-B family processors

Your analog module is shipped already calibrated from the factory. To
recalibrate the module, it must be able to communicate with the processor
and a programming terminal.

If the processor has block transfer capability, you must enter ladder logic
into the processor memory before calibrating the module. You can then
initiate BTWs to the module, and the processor can read inputs from the
module (BTRs).

Table 7.A

Calibration Block Transfer Write Data File or Discrete Output Data File

Discrete Octal Bit

17

16

15

14

13

12

11

10

07

06

05

04

03

02

01

00

Discrete Decimal Bit

15

14

13

12

11

10

09

08

07

06

05

04

03

02

01

00

Word 0

1

1

0

0

WR

IM

EX

HL

O1

O0

I3

I2

I1

I0

Word 1

Output Channel 0 Calibration Data

Word 2

Output Channel 1 Calibration Data

Chapter Objective

Tools and Equipment

Calibrating your Module