program for a Siemens Logosoft PLC
Budget: $30 – $250 USD
A program for a Siemens Logo PLC to control a motor – (0 – 10Volt or 2 – 20 mA output)
Two triple pole rotary switch inputs – (9 possible results)
Rotary switch No. 1 selects dose value, namely 7.5ml, 9ml & 11ml – (the values are recorded in a table that can be changed by a supervisor)
Rotary switch No. 2 selects the dose strength, namely 1x dose, 2x dose or 3x dose – (the values are recorded in a second table to enable the supervisor to change the value of 2x & 3x if required e.g. 1x dose, 1.5x dose or 2.2x dose)
The run function will only give an output if both switches have a value selected, ie, if Rotary switch No. 1 or No.2 is on position 0, there will be no output value.
The output value in each of the 9 possibilities will relate to the a table with a constant in each place that will be entered when the system is calibrated.
The constant will determine the output value (0 – 10Volt or 2 – 20 mA output)
Two triple pole rotary switch inputs – (9 possible results)
Rotary switch No. 1 selects dose value, namely 7.5ml, 9ml & 11ml – (the values are recorded in a table that can be changed by a supervisor)
Rotary switch No. 2 selects the dose strength, namely 1x dose, 2x dose or 3x dose – (the values are recorded in a second table to enable the supervisor to change the value of 2x & 3x if required e.g. 1x dose, 1.5x dose or 2.2x dose)
The run function will only give an output if both switches have a value selected, ie, if Rotary switch No. 1 or No.2 is on position 0, there will be no output value.
The output value in each of the 9 possibilities will relate to the a table with a constant in each place that will be entered when the system is calibrated.
The constant will determine the output value (0 – 10Volt or 2 – 20 mA output)