Yokogawa DR240 - Manual (Page 69)

6-15 IM DR231-11E
Commands
6
XJ Selection of reference junction
compensation
Mode Setup mode
Setting XJp1, p2, p3
p1 Channel number (001 to 560)
p2 Selection of reference junction compensation
value
INT
Internal compensation circuit
EXT External junction compensation
p3 External reference junction compensation
value (-20000 to 20000)
Example Set channel 01 of subunit 0 to external junction
compensation at a compensation value of 1000
µ
V
XJ001, EXT, 1000
Comments • For p2 = INT, parameter p3 is ineffective.
• The unit of p3 is
µ
V.
XG Sets computation error handling.
Mode Operation mode
Setting XGp1, p2, p3, p4
p1 Computation error handling (+OVER/-
OVER)
p2 Scale unit for TLOG computation (OFF, /
SEC, /MIN, /HOUR)
p3 Handling of abnormal data in a channel for
TLOG computation
ERROR Handled as computation error.
SKIP
Abnormal data are skipped
(ignored) and computations are
executed.
p4 Handling of overflow data in a channel for
TLOG computation
ERROR Handled as computation error.
SKIP
Abnormal data are skipped
(ignored) and computations are
executed
LIMIT If linear scaling has been set, its
upper- and lower-limit values are
computed. If it has not been set,
the upper- and lower-limit values
in the measurement range are
computed.
p5 handling of data for TLOG.PSUM(only for
PULSE input module)
OVER A result of the computational
expression TLOG.PSUM (XXX)
exceeding 99999999 as an
overflow
ROTATE A result of the computational
expression TLOG.PSUM (XXXX)
exceeding 99999999 to continue
computing with the value
following 99999999 reset to 0.
Example Compute computation error as +OVER and TLOG
computation scale value as off, and ignore abnormal
data in a channel and overflow data in a channel for
computation and a result of the computational
expression TLOG.PSUM (XXX) exceeding
99999999 as an overflow. .
XG+OVER, OFF, SKIP, SKIP, OVER
Comments • This command is effective only with the optional
computation functions.
• p2 is effective for the totalization of flow signals,
which are expressed in engineering units — /s, /
min, /h.
If p2 is set according to the input unit, the
measurement data are computed based on that unit
at the specified measurement intervals. For
example, set the measurement interval to 2s, the
input value to 100 m3/min, and p2 to /MIN. By
doing this,
because 2s/60s is multiplied for each
measurement interval, then after 1 minute,
approximate actual input values are obtained.
XT Sets the temperature unit
Mode Setup mode
Setting XTp1
p1 Temperature unit
C
°
C
F
°
F
Example Set temperature unit to
°
C
XTC
XL Sets the language
Mode Setup mode
Setting XLp1
p1 Language
ENGLISH
GERMAN
FRENCH
Example Set temperature unit to GERMAN
XTGERMAN
XE Establishes the contents of the setup
mode setting.
Mode Setup mode
Setting XEp1
p1 Selection of establishment or destruction
STOREEstablishment
ABORT
Destruction
Example Store a parameter set in the setup mode in NVRAM.
XESTORE
Comments • A parameter set in the setup mode becomes
ineffective if the mode is changed without
executing STORE. After setting all parameters in
the setup mode, you must store the set data in the
internal memory using the XE command. After
normal processing with the XE command, the
mode is transferred to the operation mode.
• Since execution of the XE command takes an
indefinite time, return an ACK after the
processing is completed. On the controller side,
execute the next processing after receiving an
ACK after transmitting the XE command. The
format of the ACK status is as follows:
E0Cr+Lf The processing of a received command
completed normally.
E1Cr+Lf There is an error in the received
command.
XZ Performs A/D calibration of the input
module.
Mode A/D calibration mode
Calibration using the actual input value at the input
terminal
Setting XZp1, p2, p3, p4
p1 Subunit number (0 to 5)
p2 Slot number (0 to 5)
p3 CAL/EXEC
p4 Calibration item
For universal input module
20 mV, 60 mV, 200 mV, 2 V, 6 V, 20 V, 50
V, pt:1 mA, Pt:2 mA, Pt:1 mA-H, Pt:2 mA-
H, Cu:2 mA
For DCV/TC/DI input module
20 mV, 60 mV, 200 mV, 2 V, 6 V, 20 V, 50 V
For mA input module
20 mA
For strain input module
2k_ZERO, 2k_SPAN, 20k_ZERO,
20k_SPAN, 200k_ZERO, 200k_SPAN
6.5 Other Settings