Communication Via Serial Interface / Interface Commands - Sensor Therm METIS M3F1 User Manual

11

Communication via Serial Interface / Interface Commands

Interface commands are used to communicate directly with a Sensortherm pyrometer. Commands can
be used to write an own access control or can be entered in the terminal field of the software Sensor-
Tools (see 7.4 Miscellaneous) or entered via a terminal software. Data is exchanged in ASCII format
with the following transmission parameters:
8 bit, 1 stop bit, even parity (8,1,e).
Command structure:
For successful communication the following sequence of a command is used:
Device Address - Command - Parameter
 Device address: all interface commands are starting with the 2-digit device address (exception: in
the terminal field of the SensorTools software no address is required). In factory setting the device
address is 00 but can be change directly at the pyrometer (under INTERFACE>  ADD).
Device addresses from 00 to 99 are valid but 98 and 99 are with special functions. The global ad-
dress 99 can be used to communicate with every controller, independent of the set device address.
This allows communication with devices which have unknown addresses. The address 98 is a group
address used for RS485 devices. Devices do not answer with this address, useful to change parame-
ters of all connected devices at the same time.
 Command: command have to be completed with a carriage return <CR> (decimal 13).
 Parameter (Unless otherwise specified, coded hexadecimal):
without parameter the command reads out the current set value. The answer at request commands
is the set value of the device corresponding to the possible settings described in the table. Answers
are normally finished with a <CR>. Deviating read commands are in parentheses in the respective
write commands.
With parameter the parameter will be set into the device. A setting command answers with
ok+<CR>, this means the command is accepted.
Note: The following commands are valid with the newest firmware version.
Com- Parameter
mand
aa XY
(aaX)
an X
ar X
as X
ax XXXX
az XXXXXX
bn
bn1
bum XX
bup
38
Communication via Serial Interface / Interface Commands
Description / Settings
Output of analog output 2
X=2 (analog output 2); Y=0...8, output temperature or controller
Y=0 = No output
Y=1 = 2-color temperature
Y=2 = temperature channel 1
Display temperature (for temperature reading see mw command)
X=0...3; 0=2-color channel; 1=channel 1; 2=channel 2; 3=channel 1+2;
4=flame channel
Analog output 2
X=0...1; 0=0–20mA; 1=4–20mA
Analog output 1
X=0...1; 0=0–20mA; 1=4–20mA
switch-off level in 1/10%
XXXX=0x0014...0x0384 (corresponds to 2.0...90.0%)
Response time of the shutdown (in steps of 100 µs...10 s)
XXXXXX=0x000000...0x0186A0
Reference number pyrometer (18-digit ASCII)
Reference number pyrometer (21-digit ASCII)
Buffer mode selection (XX = 00...02)
Poll of the buffer data (only one current packet!)
Buffer mode 00: answer: AAAA
AAAA = Display temperature (0xF001 => Overflow)
Buffer mode 01: answer: AAAABBBBCCCC
AAAA = Temperature channel 1 (0xF001 => Overflow)
BBBB = Temperature channel 2 (0xF001 => Overflow)
CCCC = 2-color temperature (0xF001 => Overflow)
Buffer mode 02: answer: AAAABBBBCCCCDDDDEEEEFFFFGGHHIIJJ
Y=3 = Temperature channel 2
Y=7 = Flame temperature
Y=8 = Device temperature
METIS M3F1