29
03 00 00 00 04 CRC
（
40001
、
40002
、
40003
、
40004
）
Return the data as
：
01 03 08 PV
（
40001
）
SV
（
40002
）
MV and CRC which is the parameter
（
40004
：
PS here mean the record of SV
）
read from Alarm Status
（
40003
）
Upper Alarm: 01H
（
40002
）
Then dispatching the record 01 03 00 02 00 04 CRC
（
read 40002
、
40003
、
40004
、
40005 to get
4 records
）
Return the record as 01 03 08 PV
（
40002
）
SV
（
40003
）
MV and CRC which is the parameter
（
40005
：
PS here mean the record of HIAL
）
read from Alarm Status
（
40004
）
.
3
、
Instruments with manual operation function can support regulating output value manually by
writing 1AH parameter.
4
、
15H is model tagged word for instruments
，
different tagged word for different model instruments.
3.3.4 Temperature re-transmitter / Program generator / Manual
current output
Besides AI PID, stand PID control and on-off control, if the output is defined as current output, the
instrument can also retransmit PV (process value) or SV (setpoint) into linear current and output
from OUTP. The precision of current output is 0.2%FS. Base on that ability, AI-516 can become
temperature re-transmitter and AI-516P can become program generator The corresponding
parameters are set as below:When CtrL=POP, PV is retransmitted to linear current, the instrument
works as temperature re-transmitter.
When CtrL=SOP, SV is transmitted and outputted, and the instrument works as manual current
output controller(AI-516) or program generator(AI-516P) .
OPt is used to choose output type, generally 4
～
20mA or 0
～
20mA output.
Parameter InP, SCL, SCH, and Scb are used for selecting input specification, setting low limit or
high limit of PV and adjusting input.
For example, in order to retransmit temperature read from K thermocouple, range 0
～
400
℃
, to
current 4
～
20mA, the parameters are set as below: InP=0, ScL=0.0, ScH=400.0, OPt=4~20, and
X3 or X5 linear current module is installed in OUTP slot. When the temperature is less than or
equal to 0
℃
, the output is 4mA. When the temperature equals to 400
℃
, the output is 20mA.
4. Further description for the operation of AI-516P
series instrument
AI-516P v8.0 program type temperature controller is used in the application where the setpoint
should be changed
automatically with the time. It provides 30 segments program control which can be set in any slope
and the function of
jump, run, hold and stop can also be set in the program. Measurement startup function, preparation
function and
power-cut/power-resume event handling modes also provided.
