External repository for random data (errd) – Rockwell Automation 1732E-XXXX ArmorBlock 2-Port EtherNet/IP Modules with QuickConnect User Manual

Page 15

Advertising
background image

1732E ArmorBlock 2-Port EtherNet/IP Modules with QuickConnect 15

Publication 1732E-IN010C-EN-E - June 2013

Refer to On-Machine Connectivity Catalog, publication

M117-CA001

, for Rockwell

Automation cable and cord set offerings or use the configuration tools available at

www.rockwellautomation.com/en/e-tools/

.

External Repository for Random Data (ERRD)

The QuickConnect modules provide onboard nonvolatile memory, of up to 6 Kbytes, for
storing block-specific data such as Tool ID and counter value. You can read from and write
to the module memory.

To read from the module

1. Send an EtherNet/IP Explicit Message with the following information:

To write to the module

2. Send the following three EtherNet/IP Explicit Messages:

Service Code

4C (hex)

Class ID

6E (hex)

Instance ID

1

Attribute ID

1

Request Data

Data Payload (total 8 bytes):
Offset Description
0x00

Address to Read from

0x04

Number of bytes to read (max. 472 bytes)

Start command
Service Code

06 (hex)

Class ID

6E (hex)

Instance ID

1

Attribute ID

1

Write command
Service Code

4D (hex)

Class ID

6E (hex)

Instance ID

1

Attribute ID

1

Request Data

Data Payload (max 8+ 472 bytes):
Offset Description
0x00

Address to Write to

0x04

Number of bytes to write (max. 472 bytes)

0x08

User Data (Array of USINT)

Advertising