Firmware: V2.18 / V--
26.10.2022
111/119
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11 Manual / Automatic operating modes changeover
The Manual / Off /Automatic selection is available in the same way for the base module and the SIOX extension
module. These can be used for the following purposes:
1. Service, commissioning or TÜV acceptance
2. Emergency operation
Other operating modes are possible, but must be programmed by the developer of the planned application. The
coding switches 1..4 of DIP switch S1 can also be used for this purpose, see chapter
Service mode
- to disable certain predefined functions, for example so that the acceptance of an expert can
be supported
Expansion stages
- for the programs e.g. one or two desuperheaters
Manual mode enables permanent switching from Automatic mode to Manual ON (I) or to Manual OFF (O). The
program control for the respective selected field device has no function in manual mode. Manual/automatic
switching of the respective field device, which depends on the application, is performed via the switches located
on the front.
Example on the base module
(S8 on O = Manual OFF)
The following switch positions are possible:
Automatic ON (A) - switch position for "normal operation "
If any switch is in the A position, the controller registers the logical state AUTOMATIC OPERATION:
The connected equipment is
controlled as the software envisages
.
Manual OFF (O)
If any switch is in the 0 position, the controller registers the logical state MANUAL OPERATION OFF:
The connected equipment is
not controlled
- even if the software envisages this
, e.g. pump remains off continuously! Or it could be, for example, a " Manual active" indicator lamp on the
switch cabinet door or a priority message via the CAN bus.
Manual ON (I)
If any switch is in the I position, the controller registers the logical state MANUAL OPERATION ON:
The connected equipment is
always controlled
- even if the software does not envisage this
, e.g. pump remains on continuously!
The Manual ON (I) and Manual OFF (O) positions override the state desired by the software! The
Automatic Operation (A) by the program in the controller is inoperative until the respective switch is set
to
AUTO
again.
