7 basic setting commands (measurement), Basic setting commands (measurement) -40, Xa sets alarm related settings – Yokogawa Data Acquisition with PID Control CX2000 User Manual

Page 169: Xi sets the a/d integral time, Xb sets the burn out, Xj sets the rjc

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IM 04L31A01-17E

6.7 Basic Setting Commands (Measurement)

6.7

Basic Setting Commands
(Measurement)

• To activate the settings that are changed using the basic

setting commands, the settings must be saved using the

XE command. Make sure to save the settings with the XE

command before changing from the basic setting mode to

the operation mode. Otherwise, new settings will not be

activated.

• The settings that are returned in response to a query in the

basic setting mode will contain the new settings even if

they are not saved with the XE command. However, the

new settings will not be activated until they are saved. In

order to activate the new settings, the XE command must

be issued as described earlier. If the settings are not

saved or cleared using the XE command and the

execution mode is changed from the basic setting mode to

the operation mode, the settings that are returned in the

response to a query will contain the settings that existed

before they were changed.

Note

The settings that are changed using the YA/YK/YN/YQ/
YS/YG/YL/YM command are activated after saving the
new settings using the XE command and rebooting the
CX.

XA

Sets alarm related settings

Syntax

XA p1,p2,p3,p4,p5,p6,p7,p8<terminator>
p1: Turn ON/OFF reflash (ON, OFF)

p2: Relay number set to AND logic (NONE, I01,

I01-Ixx)

Ixx: I02 to I06, I11 to I16, I21 to I26, I31 to

I36

p3: Energize/De-energize the relay

(ENERGIZE, DE_ENERGIZE)

p4: Hold/Not hold the relay (HOLD, NONHOLD)

p5: Hold/Not hold the alarm status indication

(HOLD, NONHOLD)

p6: Interval for the upper limit on the rate-of-

change (1 to 15)

p7: Interval for the lower limit on the rate-of-

change (1 to 15)

p8: Turn ON/OFF the alarm hysteresis (ON,

OFF)

Query

XA?

Example

Set relay numbers I01 to I12 to AND logic.

Enable reflash. Set the alarm to energizing and

hold. Set the alarm status indication to hold. Set

the interval for the upper limit on the rate-of-

change to 10 and the interval for the lower limit

on the rate-of-change to 12. Enable alarm

hysteresis.

XAON,I01-I12,ENERGIZE,HOLD,HOLD,

10,12,ON

Description • The interval is set in units of the scan interval.

The XV command is used to set the scan

interval.

• The hysteresis setting does not apply to

computation channels.

XI

Sets the A/D integral time

Syntax

XI p1<terminator>
p1: A/D integral time (AUTO, 50HZ, 60HZ,

100MS)

Query

XI?

Example

Set the A/D integral time to 50 Hz.

XI50HZ

XB

Sets the burn out

Syntax

XB p1,p2<terminator>
p1: Channel number (01 to 20) (01 to 06 on the

CX1000)

p2: Burn out procedure (OFF, UP, DOWN)

Query

XB[ p1]?

Example

Set to UP (+ overflow) when channel 01 burns

out.

XB01,UP

XJ

Sets the RJC

When using the internal compensation circuit

Syntax

XJ p1,p2<terminator>
p1: Channel number (01 to 20) (01 to 06 on the

CX1000)

p2: Reference junction compensation selection

(INTERNAL)

Query

XJ[ p1]?

Example

Set the RJC of channel 01 to the internal

compensation circuit.

XJ01,INTERNAL

When using an external RJC

Syntax

XJ p1,p2,p3<terminator>
p1: Channel number (01 to 20) (01 to 06 on the

CX1000)

p2: Reference junction compensation selection

(EXTERNAL)

p3: External RJC value (–20000 to 20000)

Query

XJ[ p1]?

Example

Set the reference junction compensation of

channel 02 to external and set the compensation

value to 0 mV.

XJ02,EXTERNAL,0

Description The unit of p3 is mV.

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