Rotary Axis Operating Mode; Function - Siemens SIMATIC S5 Equipment Manual

R 02/92
1.8

Rotary Axis Operating Mode

1.8.1 Function

The rotary axis function can be selected separately for each channel, starting with version:
A14 (firmware release R08) for basic module 6ES5 241 –lAA11 or
AO1 (firmware release R09) for basic module 6ES5 241 –1AA12
Specify the desired function in the data block (IP 241 ) for parameterization via standard function
block FB 156 in accordance with the programming instructions.
In case of direct parameterization (without the standard function block) the following applies:
Load the constant assigned to the function (see table below) in KM or KH format into the start–
up 06s (OB20 to OB22). Transfer the constant to the set module address +4 as shown in sec-
tion 9.6. SP bit scan.
Function
Rotary axis channel 1 only
Rotary axis channel 2 only
Rotary axis channels 1 and 2
In practical application the rotary axis function is always used, where exceeding the area end value
starts a new traversing path at the same time.
This applies to rotary axes, rotary plates, or continuous conveyors.
With the rotary axis function, exceeding an area end value by one increment toward O is regarded
as a forward movement of one increment by the position encoder. Therefore, no brief and incorrect
misleading of the track identifier bit takes place as with the linear axis.
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General Function Description
KH KM
F4 11110100
F5 11110101
E7 11100111
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