7.2 Interface functions
Interface functions such as read and write commands make it possible to
read out the current operating parameters of constant temperature equip-
ment and predefine specific settings and process values.
The interface functions supported by this interface are presented briefly
below. They are sorted by topic according to the component affected and
assigned a unique ID. Depending on the technical configuration of your
constant temperature equipment, the number and scope of the interface
functions actually available may vary from the list shown here, see chapter
"Availability of the interface functions".
7.2.1 Read commands
The contact module recognizes the following read commands, which you can
use to query the operating data of the constant temperature equipment:
Table 1: Fill level
ID Function
Unit
10 Signal refilling
[–]
Table 2: Status
ID Function
Unit
75 Status of standby: 0 = Device is switched on / 1 = Device is switched off
[–]
130 Device status
[–]
137 Error status
[–]
140 Low-level alarm
[–]
141 Overtemperature alarm
[–]
153 Report compliance with the defined temperature range (inside / outside)
[–]
Table 3: Programmer
ID Function
Unit
82 Programmer status
[–]
V1
Interface module LRZ 914 / 915
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