Rosemount 2700 - Page 46

A-12
MODEL 2700 APPENDIX A
SERIAL COMMUNICATIONS PROTOCOL
Continued 44H 65H 67H 43H 00H 0DH
‘D’ ‘e’ ‘g’ ‘C’ NUL CR
Example:
Instrument Address = 1
Dual Measurement Units
There are 4 units for Dual Measurements
To 2700 81H 78H 31H
From 2700 81H 78H 31H 30H 34H 52H 53H 54H 49H 4FH
Dual ‘0’ ‘4’ ‘R’ ‘A’ ‘T’ ‘I’ ‘O’
Continued 00H ... 25H 52H 45H 4AH 45H 43H
NUL ... ‘%’ ‘R’ ‘E’ ‘J’ ‘E’ ‘C’
Continued 54H 00H 0DH
‘T’ NUL CR
1.3.11 Update EEPROM 63H/ 99
Copies RAM to EEPROM.
To 2700 ADDR CMD
From 2700 ADDR CMD R
ADDR: Instrument Address
CMD: 63H
R: Result Code - ‘G’ Pass or ‘F’ Fail
Example:
Instrument Address = 1
To 2700 81H 63H
From 2700 81H 63H 47H
‘G’
1.3.12 Write RAM 6FH/111
To 2700 ADDR CMD TYPE # A3 A2 A1 A0 Data K
From 2700 ADDR CMD TYPE # A3 A2 A1 A0 Data R
ADDR: Instrument Address
CMD: 6FH
TYPE: Data type - Floating-point (‘F’) or Byte (‘B’)
#: Start of RAM address
An: RAM address; A3 is MSB
Data: Floating-point or Byte
K: Proceed Command - ‘G’ Do write or Not ‘G’ Abort
R: Result code - ‘G’ No errors or ‘E’ Write Error
Example:
Instrument Address = 1
Floating-point type
Address 06E3H
Data 12.5
To 2700 81H 6FH 46H 23H 32H 36H 45H 33H 30H 30H
From 2700 81H 6FH 46H 23H 32H 36H 45H 33H 30H 30H
‘F’ ‘#’ ‘0’ ‘6’ ‘E’ ‘3’ ‘0’ ‘0’
Continued 30H 30H 34H 38H 43H 31H 47H
Continued 30H 30H 34H 38H 34H 31H 47H
‘0’ ‘0’ ‘4’ ‘8’ ‘4’ ‘1’ ‘G’