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Instruction Manual MM850099 ed.02a
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Tx char
→
Rx char
Rx CHKSUM
←
Tx CHKSUM
Notes
Instr
DATA1
DATA2
DATA3
DATA4
Actual value
21
Value Hi
Value Lo
-----
Selected
Parameters
20
-------
Status
-----
Battery
Status .AND. 80hex =
0
= Measurement
80hex
= Generation
Status .AND. 10hex =
0
= mA
10hex
= %
Selected
4
= 0-20 mA EX
or
5
= 4-20 mA
Status .AND. 0Fhex =
6
= 4-20 mA'
11
= 0-20 mA SF EX
12
= 4-20 mA SF
If Value Hi = 7Fhex
0
= over
corresponding "Value Lo" =
1
= under
2
= wait
3
= error
4
= error 6
value(name) = 2nd complement (16bit) Value Hi(name) x 256 + value Lo(name)
Battery .AND. 20 =
0
= OK
20
= Low Battery
Battery .AND. 01 =
0
=OK
1
= Hold
Battery .AND. 02 =
0
= OK
2
= Average
CHKSUM ( checksum ) = ( DATA1 + DATA2 + DATA3 + DATA 4) AND.FF.HEX
The above is useful to verify a correct transmission and receival. The minimum time-out of the
UniCal
mA
is 5 seconds.
8.7.5
Computer request for UniCal settings
Host
UniCal mA
Tx IDNAME
→
Rx IDNAME
Proceed if name acknowledged
Rx IDNAME
←
Tx IDNAME
If not do not answer
Tx Instruction
→
Rx Instruction
Rx Instruction
←
Tx Instruction
Rx DATA 1
→
Tx DATA 1
Tx char
←
Rx char
Rx DATA 2
→
Tx DATA 2
Tx char
←
Rx char
Rx DATA 3
→
Tx DATA 3
Tx char
←
Rx char