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13
Temperature Control Start/Stop
Section 3-4
Note
1.
If the Output Area Error Flag or Temperature Controller Error Flag is ON
(1) for longer than 1 s, the remote I/O data will not be transmitted correctly
to the E5ZE.
2.
The measurement range is from the setting range lower
-
limit negative val-
ue (-20
°
C or -40
°
F) to the setting range upper
-
limit positive value (20
°
C or
40
°
F).
3-4
Temperature Control Start/Stop
The temperature control of control points in the E5ZE is started and stopped
by operating the bits in the corresponding word allocated in the PC to which
the Master Unit is mounted, as follows:
Example
If the temperature control of all control points is stopped and then starts for
control point 3, the contents of the corresponding word in the PC will change,
as follows:
3-4-1
Startup Operation
When pin 5 (startup operation setting) of the FUNCTION switch on the front
panel of the E5ZE
-
8
@@@
D1
@
B
-
V2 Multipoint Temperature Controller is set to
ON, the Unit will operate as shown in the following diagram.
Process Value Underflow
Flag
This flag changes from 0 to 1 if the process value is
less than the minimum value of the setting range.
(See note 2.)
Heater Current Overflow Flag This flag changes from 0 to 1 if the measured heater
current exceeds 55.0 A when the HB and HS alarm
are being used.
Flag name
Meaning
Leftmost bit
Rightmost bit
Temperature Control Start/Stop
Set to 00000000
Set the bits corresponding to the
control points for which temperature
control is to begin to 1.
To stop temperature control for any
control point, set the corresponding
bit to 0.
0000000000000000
®
0000000000001000
Temperature control
started for control
point 3
E5ZE status
E5ZE
power ON
Time
DeviceNet communications
between Master and E5ZE
enabled.
Operation according to
control temperature and
operating status when
power was turned OFF
previously.
Operation according to control temperature
and operating status set by remote I/O.