Rockwell Automation 1794-APBDPV1 FLEX I/O PROFIBUS Adapter User Manual User Manual

Page 94

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Publication 1794-UM064B-EN-P - May 2014

82 Configure the Adapter for Master/Slave Communication

• an error bit in the poll response data is set
• a diagnostic bit in the Ext_Diag_Data field returned in the Read DP-Slave

Diagnostic Information message response is set

All eight slots must be configured with the module key parameter. The size for
this format depends on the module types which are configured (1 word ID for
standar modules, 2 word ID for EDT modules). The range can vary from
20 bytes (including the flags byte) to 36 bytes.

The condensed format structure must be repeated for each of the eight slots.

The following table shows the identification numbers for commonly used FLEX
I/O modules.

Data Format for Condensed Format

Name

Size

Description

Module Key

WORD

Module ID # that must be installed

(1)

(1)

Only bits 0…12 are used. Bits 13…15 must be zero except when keying an empty slot where 0FFFFh is used.

FLEX I/O Module Catalog Number

Module Identification Number
(module key)

Four-word Modules

1794-IB8

0180h

1794-OB8

0190h

1794-IB16

0281h

1794-OB16

0191h

1794-IV16

0204h

1794-OV16

010Ch

1794-IA8

0285h

1794-OA8

0195h

1794-OA8I

019Ch

1794-OW8

0199h

Sixteen-word Modules

1794-IE8/A

1920h

1794-OE4/A

1121h

1794-IE4XOE2/A

1522h

1794-IE8/B

1924h

1794-OE4/B

1125h

1794-IE4XOE2/B

1526h

1794-IT8

1B00h

1794-IR8

1B01h

1794-IRT8

1B03h

1794-ID2/B

1B03h

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