Rockwell Automation 1794-APBDPV1 FLEX I/O PROFIBUS Adapter User Manual - Manual (Page 96)

Publication 1794-UM064B-EN-P - May 2014
84 Configure the Adapter for Master/Slave Communication
Full Format
The full format consists of the flags byte and four parameters for each of the eight
slots. The module key parameter is the same for the full format as defined by the
condensed format, but adds three more parameters for each slot.
Use the full format for non EDT I/O modules to:
• provide Safe State values for output points
• send FLEX I/O module configurations once (when you send parameters)
instead of every poll
• configure data sizes to reduce the size of data required during run mode
Use the full format for EDT I/O modules to:
• provide Safe State values for output points
• send FLEX I/O module configurations once (when you send parameters)
instead of every poll
• configure data sizes to reduce the size of data required during run mode
• configure HART variables data to show in the cyclic PROFIBUS data
area.
You must configure all eight slots. The minimum size is 28 bytes – no slots have
FLEX I/O module configuration or safe state data. The maximum size is
237 bytes (the size of the PROFIBUS user parameter area).
Data Format for Full Format of Non EDT I/O Module
User
Parameter
Byte Name Size Description
5, 6 Module Key WORD Module ID # that must be installed (2)
(2) Only bits 0…12 are used. Bits 13…15 must be zero except when keying an empty slot where 0xFFFF is used.
7 Module Data Sizes
(1)
(1)
Each of the two sizes can range from 0…15 words but when combined cannot exceed 15 words total.
BYTE Bits 0…3 Safe State Size (in words)
Bits 4…7 Module Configuration Data Size (in
words)
8....x Safe State Data ARRAY Output Safe States. Word array of size Safe
State Size.
x...y Module Configuration
Data ARRAY FLEX I/O Module Configuration. Word array of
size Configuration Size.