Instruction Manual

III-10 Communication
ISO 1745
In total, max. 20 L1READ and L1WRIT functions can be configured (blocks 1...20 ), any combination of functions is pos
-
sible. Any number of data can be used in the functions.
III-10.1 L1READ ( read level1 data(No. 100) )
General
Any 7 analog process values (x1...x7) and any 12 digital status informations (d1...d12) of the engineering are composed into a
data set for the digital interface. The digital interface can read the data set as a complete block with code 00, function num-
ber 0, or the individual values with codes 01...09, function number 0.
Inputs/outputs
Digital inputs:
d1 ... d6
Digital process values, which can be read via interface (status byte 1). (Default = 0)
d7 ... d12
Digital process values, which can be read via interface (status byte 2). (Default = 0)
Analog inputs:
x1 ... x7
Analog process values, which can be read via interface. (Default = 0)
Engineering example
In the following example, several process data (process value, effective and control deviation) and controller statuses
(automatic/manual, Wint/Wext and y/Y2) are connected with the L1READ function block. Now, these data can be read
in a message via interface.
9499-040-82711 Communication
L1READ ( read level1 data(No. 100) ) III-169
Interface
x1
x7
...
Statusbyte1
Code 01
Code 02
Code 00
Code 03
Code 04
Code 05
Code 06
Code 07
Code 08
Code 09
6543210
d6
d1
...
Statusbyte2
6543210
d12
d7
...
Example for L1READ engineering