RESISTOMAT
®
Model 2302-V001
Page 36
Introduction &
applications
Description of functions
Brief guide
Operation
Calibration
Test and offset
instructions
RS232 data
output
Accessories and Circuit diagram
RS232 data
output
rs
(stands for: reset, W3 instruction)
The addressed device is to perform a reset ("warm start").
Example:
Master transmits:"Slave at address 00, perform a reset."
C
D
00rsC
D
<B>
<B>: Block check character
<EOT>00rs<ENQ><B>
Slave responds:
"Message understood."
C
F
<ACK>
sd
(stands for: set (message-) delay, W1 instruction)
During communication, the interface is to wait between the reception of a
message and the transmission of a new one. This function is required, for
example, to communicate with stored-program controls (SPC).
Example:
Master transmits:"Slave at address 00. Set your
response delay to 50ms."
C
D
00sdC
B
50C
C
<B>
<EOT>00sd<STX>50<ETX><B>
Slave responds:
"Message understood"; from then on, it waits for 50 ms
before transmitting any new messages.
C
F
<ACK>
Instructions for requesting measurement valules and identifying faults
Overview:
Code
Type
Function
pv
R3
Request measurement value
( fast )
sf
W3
Select display format
sm
R2/3
Request formatted
measurement value
( slow)
pv
(stands for: parameter value, R3 instruction)
The addressed device is to transmit the measurement value read in last to the controller.
This value is accompanied by a flag which indicates whether or not the value was already
read in on a previous occasion.
