Yokogawa GC8000 Process Gas Chromatograph - Manual (Page 469)

<Appendix D Action of External Input and Output Signals>
App.D-24
IM 11B08A01-01E
<GC6>
The Analyzer number (e) to be used in the <GC1000/GC8> format is not provided.
(3) Error alarm (fi xed to 45 characters)
This is output only when an alarm occurs.
All the alarms currently occurring are output at the time of startup.
<GC1000/GC8>
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45
A S / , : , CR LF
└──┘ └──┘ └──┘ └──┘ └───────┘ └─────┘
a b c d e f
a: Month (01 to 12)
b: Day (01 to 31)
c: Hour (01 to 24)
d: Minute (00 to 59)
e: Error alarm types
AD1_, AD2_ = Detector 1 (or 2) calibration error
TMPH = Temperature control error or temperature exceeding the higher or lower limit
CAR1, CAR2 = Carrier gas 1 (or 2) pressure drop
EXT1 to EXT8 = External contact inputs 1 to 8
FLM1, FLM2 = FID1 (or 2) extinguished
PRT_ = Calibration repeatability error
CAL_ = Calibration out of range
f: Analyzer number (1 to 240) (zero suppression provided)
<GC6>
The Analyzer number (f) to be used in the <GC1000/GC8> format is not provided. Error alarm
types (e) are as follows:
e: Types of error alarms
CAR_ = Carrier gas 1 or 2 pressure drop (Pressure switch 1 or 2 OFF)
FLM_ = FID1 or 2 extinguished
PRT_ = Calibration repeatability error
CAL_ = Calibration out of range
(4) Input Data Format
● Stream change command (SM/SE/SC)
When the stream sequence is set for the measurement condition, the command changes
the starting stream number of the current stream sequence. This change can be carried out
in any operation mode (Run, Stop or Pause) except when the operation mode change or the
measurement status change is being requested.
The command changes only the starting stream number, not the stream sequence specifi cation.
The result is written in fl ash memory.
1 2 3 4 5 6 7 8
For GC6
1 2 3 4 5 6
S M CR LF S C CR LF
└──┘ └┘ └──┘
a b a
1 2 3 4 5 6 7 8 9 10
S E CR LF
└──┘ └─────┘
a b
a: Starting stream number (1 to 31 or 01 to 31)
b: Analyzer number (1 to 9 when M comes in the second digit, and 1 to 240 or 001 to 240 when E comes in the second digit)
2nd Edition : May 11, 2012-00