Ee memory functions – Rockwell Automation 1203 Serial Communications Module Series B User Manual
Page 61

5–13
Block Transfer Emulation Instructions
1203–5.5 September 1995
The EE Memory Functions message activates the specified EE
functions.
PLC Block Transfer Emulation Instruction Data
PLC request instruction length: 4 words
Drive response instruction length: 3 words
Header
Word 1
PLC Decimal Value
–31998
Message Structure
Header
Word 2
Header
Word 3
PLC Request
Header Word 1
Header Word 2
Header Word 3
Message Length
Message Length
PLC Decimal Value
770 –– Message OK
–31998 –– Message Error
0
Drive Response
4
0
Header Word 4
EE Command
Value
EE Command
00
01
02
03
Not Used
EE Save
EE Recall
EE Default Initialize
3
Message Operation
The EE memory function allows three different message requests:
•
EE Save saves parameter information from the working memory
or RAM to EEPROM.
•
EE Recall retrieves the last saved data from EEPROM and places
it in the working memory or RAM.
•
EE Default Initialize clears the RAM and EEPROM and sets all
parameter values to default.
If an error has occurred, word 2 of the response returns a value of
–31998.
EE Memory Functions