84
returned without an end code (see
Section 4-1-2 End Codes
for the IC header
code response format).
@
0
Unit R
X
End
code
CR
Header code
FCS
Terminator
*
7
6
5
4
3
2
1
0
Run status
Undefined
Output mode
RAM,EEPROM
Autotuning
Undefined
Undefined
Heater overflow
15 14
13
12
11
10
9
8
HS alarm
HB alarm
Alarm 2
Alarm 1
Error output
Sensor error
Temperature high
Temperature low
Status
Bit no.
The meaning of the four digits of status data read are described in the following
table. Details are also provided below for some of these.
Bit no.
Function
Meaning when ON (1)
Meaning when OFF (0)
0
RUN flag
E5ZD is operating.
E5ZD is off.
1
Not used.
Undefined.
Undefined.
2
Output mode
Cooling
Heating
3
RAM-EEPROM flag
Contents differ.
Contents are the same.
4
Autotuning flag
Autotuning.
Not autotuning.
5
Not used.
Undefined.
Undefined.
6
Not used.
Undefined.
Undefined.
7
Heater Overflow flag
Current is too large.
Current is normal.
8
Temperature Low flag
Measured temperature is too low.
Measured temperature is OK.
9
Temperature High flag
Measured temperature is too high.
Measured temperature is OK.
10
Sensor Error flag
Sensor error.
Sensor is OK.
11
Error Output flag
Error output is ON.
Error output is OFF.
12
Alarm 1 flag
Alarm 1 output is ON.
Alarm 1 output is OFF.
13
Alarm 2 flag
Alarm 2 output is ON.
Alarm 2 output is OFF.
14
HB Alarm flag
HB alarm output is ON.
HB alarm output is OFF.
15
HS Alarm flag
HS alarm output is ON.
HS alarm output is OFF.
Bit 3: RAM-EEPROM Flag
This flag turns ON whenever an command writes data to RAM to indicate that the
contents of RAM and EEPROM differ. It will remain ON until the EEPROM Write
command is used to transfer RAM contents to EEPROM again.
Bit 7: Heater Overflow Flag
This flag turns ON to indicate that the measured heater current has exceeded 55
A.
Bit 8: Temperature Low Flag
This flag turns ON to indicate that the measured temperature has dropped below
the set temperature range by 20
°
C or more.
Temperature Control Commands (All Controllers)
Section 4-2
Содержание E5ZD
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