Using the module
5.1 Using the technology module
Counting, measurement and position detection
Function Manual, 12/2017, A5E32009889-AG
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When using an incremental encoder or pulse encoder, you specify the number of count
pulses per encoder revolution with this parameter. When you use an SSI absolute encoder,
you use this parameter to specify the number of increments the encoder delivers per
revolution.
The number of count pulses depends on the configured signal evaluation. You can enter a
value between 1 and 65535.
Example of an incremental or pulse encoder:
Your incremental or pulse encoder delivers 2048 increments per revolution. Depending on
the signal evaluation, you need to assign the following in this case:
Double 4096
The encoder transmits the process value of the speed as a percentage of the reference
speed. This parameter defines the speed in rpm which is to be correspond to the value
100 % . The reference speed must be identical to the setting in the controller.
You can enter a value between 6.00 and 210000.00. The default setting is "3000.00".
You can perform additional configuration using an axis technology object of S7-1500
Motion Control . See the S7-1500 Motion Control
(http://support.automation.siemens.com/WW/view/en/59381279) function manual for further
details on configuring and commissioning position input.
You can set for each channel the events which are to trigger a hardware interrupt during
operation when assigning the basic parameters of the technology module.
In an S7-1500 system, you enter a matching event name for each enabled hardware
interrupt and assign a corresponding hardware interrupt OB to each hardware interrupt. If a
hardware interrupt is triggered, the corresponding OB is started to evaluate the hardware
interrupt data.
A hardware interrupt is triggered if the condition for changing the respective status bit or
event bit in the feedback interface is fulfilled.
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