Specifications

IP 240 Positioning
Fig. 10-3. Controlled Positioning with the IP 240
Starting
position
Target
position
V
Switching
point
Cut-off
point
Position value of the
target position
Actual value
of the
starting
position
Zero point
(reference
point)
Range BEE1
Range BEE2
The IP 240's module firmware can control the traverse speed and the direction of travel directly
over the IP's two digital outputs. For positioning with two speeds and from two directions, one of
the two functions must be initiated by the IP 240 via status or interrupt signals and controlled via
the S5 CPU over two auxiliary digital outputs.
Table 10-1. Switching IP Digital Outputs D1 and D2
IP controls the speed
Variant 1 Variant 2
IP controls the speed
Rapid
traverse
Creep
speed
Rapid
traverse
Creep
speed
Positive
direction
Negative
direction
IP output D1
IP output D2 • • •
•
•
• •
• Output active
Configuring and approaching a position
a) Position number and position value
You can store up to 254 positions per channel on the IP 240. Each position has a position
number and a position value. You invoke a stored position over the position numer (one byte)
and identify the location of the target position in the traverse range over the position value.
To avoid on-loading cyclic operation with additional interchanging of data, the position
numbers and the associated position values are initially transferred to the IP 240 when the
channel is configured. You can change the position values after configuring.
EWA 4NEB 811 6120-02a 10-3