Pulse (Bo Pulse) - Siemens TX-I/O TXM1.8D Functions And Operation

Application
Notes
Hardware
Function
Writing to Process value
Process value
Relay "ON"
Pulse/pause time
I/O status LED
Local override
Display
36/54
Siemens
Building Technologies
5.6

Pulse (BO Pulse)

For control and switching single stage electrical loads by means of pulses.
• Connection diagrams: see module data sheets.
• Step switches, pulse switches, bistable relays: see Q250, section 5.2.
• The function uses one I/O point.
• The TX-I/O relay modules have changeover contacts
• The process value must be written in "Triger mode". As a result, a pulse will be
created on each change of the process value from 0 to 1 or 1 to 0.
Without the trigger bit, no pulse will be created.
• The pulse time can be adjusted 0.1...25.5 (default = 0.5s)
• The break time can be adjusted 0.1...25.5 (default = 0.1s)
• After start-up, process quality is invalid, as long as no pulse has been generated.
"0"
An additional ON or OFF pulse can be generated (e.g. by means of the local override).
• Pressing the override button (in the middle enables/disables local override
• When local override is active:Pressing "+" or "–" generates a pulse and writes to the
process value (with trigger bit).
• The I/O status LED lights up concurrently with the relay activity.
• Local operation can be disabled in the configuration.
• The I/O status LED is ON when the relay is active.
• In the case of an error the module status LED and the I/O status LED flash.
For details, especially in relation to flashing pattern and errors: refer to the section "Dis-
play, operation and diagnostics" in the TX-I/O™ Engineering and installation guide [6].
TX-I/O™ Module system – Functions and operation
Digital output functions
"1" "1Trg" "1Trg"
"0" "0Trg"
PulseTime
BreakTime
"1Trg"
Active
Inactive
Relay Active
Relay Inactive
PulseTime
ON
OFF
CM110561en_08
2018-10-25