- 5 -
H'C
RTU,
exchange low and high byte
of CRC check code
H'3 8,N,1 H'08 38400 bps
H'4 7,O,1*
1
H'10 57600 bps
H'5 8.O,1 H'20 115200 bps
Note *1: This is only available for ASCII format.
Ex: Write H’C310 into CR#32 for a result of RTU, exchange low and high byte of CRC check code,
8,N,1 and baud rate at 57600 bps.
4. Function codes: 03’H is for reading data from registers. 06’H is for writing a word data into registers.
10’H is for writing multiple word data into registers.
5. CR#30 is the error code register. Refer to the chart below:
Error description Content b15 ~ b8 b7 b6 b5 b4 b3 b2 b1 b0
Power source abnormal K1 (H’1)
Reserved
0 0 0 0 0 0 0 1
Wiring to empty external contact K2 (H’2) 0 0 0 0 0 0 1 0
Setting mode error K4 (H’4) 0 0 0 0 0 1 0 0
Offset/Gain error K8 (H’8) 0 0 0 0 1 0 0 0
Hardware malfunction K16 (H’10) 0 0 0 1 0 0 0 0
Digital range error K32 (H’20) 0 0 1 0 0 0 0 0
Average times setting error K64 (H’40) 0 1 0 0 0 0 0 0
Instruction error K128 (H’80) 1 0 0 0 0 0 0 0
Note: Each error code will have corresponding bit (b0 ~ b7). Two or more errors may happen at the
same time. 0 means normal and 1 means having error.
6. When CR#29 is set to H’5678, CR#0 ~ CR#34 can be used for PID settings in DVP04TC-S V3.08 and
versions above.
PID Mode description
CR# Keep R/W
CR# Keep R/W
#0 O R Model name #24 O R/W
CH1 K
D
#1 X R/W Thermocouple type #25 O R/W
CH2 K
D
#2 X R
PID Output % at CH1
#26 O R/W
CH3 K
D
#3 X R
PID Output % at CH2
#27 O R/W
CH4 K
D
#4 X R
PID Output % at CH3
#28 X R/W
Run/Stop & Auto tuning
Bit0：CH1 PID Run/Stop
Bit1：CH2 PID Run/Stop
Bit2：CH3 PID Run/Stop
Bit3：CH4 PID Run/Stop
0=PID Stop，1=PID Run
Bit4：CH1 Auto tuning
Bit5：CH2 Auto tuning
Bit6：CH3 Auto tuning
Bit7：CH4 Auto tuning
1: The auto tuning
function is enabled. After
the auto tuning is
complete, the value
becomes 0.
#5 X R
PID Output % at CH4
CR#2~CR#5: 0~1000; Unit: 0.1%
#6 X R
Average temperature (
0
C) at CH1
#7 X R
Average temperature (
0
C) at CH2
#8 X R
Average temperature (
0
C) at CH3
#9 X R
Average temperature (
0
C) at CH4
CR#6~CR#9：Unit: 0.1%
#10 O R/W Set temperature at CH1
#11 O R/W Set temperature at CH2
#12 O R/W Set temperature at CH3
#13 O R/W Set temperature at CH4
CR#10~CR#13: Set the PID target value (SV)
#14 O R/W CH1 K
P
#29 X R/W
Enter PID
mode(H’5678)
K0: Exit the PID mode
#15 O R/W CH2 K
P
#16 O R/W
CH3 K
P
#30 X R Error code
#17 O R/W
CH4 K
P
#31 O R/W CH1 Sampling time
#19 O R/W
CH1 K
I
#32 O R/W CH2 Sampling time
#20 O R/W
CH2 K
I
#33 O R/W CH3 Sampling time
#21 O R/W
CH3 K
I
#34 O R/W CH4 Sampling time
#22 O R/W
CH4 K
I
CR#31~CR#34: 1~30; Unit: 1s
Note: Users have to enter the PID mode (CR#29=H’5678) before setting other control registers.
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