Yokogawa Data Acquisition with PID Control CX2000 User Manual
Page 219
7-27
IM 04L31A01-17E
7
Response
• Flag
The meaning of the flags are given on the table below. The flags are valid during
FIFO data output. The flags are undefined for other cases.
Flag
Bit
Meaning of the Flag
0
1
7
No
Yes
Indicates that the screen snap shot was executed.
6
–
–
5
–
–
4
–
–
3
–
–
2
No
Yes
Indicates that the decimal position or unit information was changed during
measurement.
1
No
Yes
Indicates that the FIFO acquiring interval was changed with the FR command
during measurement.
0
No
Yes
Indicates that the internal process took too much time (computation, for
example) and that the measurement could not keep up at the specified scan
interval.
The bits that have “.” for the flag are not used. The value is undefined.
• Block Member
Name
BINARY Value
Year
0 to 99
Month
1 to 12
Day
1 to 31
Hour
0 to 23
Minute
0 to 59
Second
0 to 59
Millisecond
0 to 999
(Reserved)
Undefined
Measurement/computation/control
00H: measurement/control, 80H: computation
Channel
01 to 248
Alarm status*
A1
A2
0 to 31
A3
A4
* BINARY value 0 to 31 is entered using a byte for the alarm status. The binary values 0 to 31
correspond to the alarm types of H (high limit alarm), L (low limit alarm), h (difference high-limit
alarm), l (difference low-limit alarm), R (high limit on rate-of-change alarm), r (low limit on rate-of-
change alarm), T (delay high limit alarm), t (delay low limit alarm), PVH (PV high-limit alarm), PVL
(PV low-limit alarm), DVH (deviation high-limit alarm), DVL (deviation low-limit alarm), DVO
(deviation high & low limit alarm), DVI (deviation within high & low limits alarm), SPH (SP high-
limit alarm), SPL (SP low-limit alarm), OTH (output high-limit alarm), OTL (output low-limit alarm),
ETC (other alarm), and space (no alarm) as follows:
0: no alarm, 1: H, 2: L, 3: h, 4: l, 5: R, 6: r, 7: T, 8: t, 21: PVH, 22: PVL, 23: DVH, 24: DVL, 25:
DVO, 26: DVI, 27: SPH, 28: SPL, 29: OTH, 30: OTL, 31: ETC.
Special Data Values
The measured/computed/control data take on the following values under special
conditions.
Special Data Value Type
Measured/Control data
Computed data
+ Over
7FFFH
7FFF7FFFH
– Over
8001H
80018001H
Skip
8002H
80028002H
Error
8004H
80048004H
Undefined
8005H
80058005H
Note
The number of blocks, number of bytes, and measured/computed/control data are output
according to the byte order specified with the BO command.
7.3 Output Format of BINARY Data