Specifications

IP 240 Positioning
The position number assigned to a position need not be identical to the number of the position
entry.
It is more practical, however, for the two to be identical, particularly when you want to change a
position value with control FB 168 after configuring ( Section 10.18.1), as the number of the
position entry, not the position number itself, must be specified in the control FB.
10.8.2 Distance Values of the Switching and Signalling Ranges
The distance values for the switching and signalling ranges for positions 1 to 254 are stored on the
IP, and apply for all of these positions.
When a position number is selected, the IP 240 takes the position value of the new target position
as setpoint and computes the locations of the switching and signalling ranges from the distance
values. These ranges are symmetrical to the position value.
Fig. 10-21. Position Setup
Distance values of the
switching and signalling ranges
BEE1 BEE3
BEE3 BEE2 BEE1
Target position
BEE2
Range BEE3
Range BEE2
Range BEE1
Example:
The following distance values were defined for a position value of 10,000 increments:
Distance value to range BEE1 = 4,000 increments
Distance value to range BEE2 = 1,000 increments
Distance value to range BEE3 = 500 increments
These values compute to the following ranges:
Range BEE1 Low limit=6,000 and high limit=14,000
Range BEE2 Low limit=9,000 and high limit=11,000
Range BEE3 Low limit=9,500 and high limit=10,500
The lower and upper limits are part of the range.
EWA 4NEB 811 6120-02a 10-31