Siemens SIMATIC 505 User & Programmers Manual page 39

Block Read Data: PLC
Constant 10
(continued)
2-16 Software Interface
Module (continued)
Bit 5
Flow Output Voltage Polarity
Velocity Byte Pressure Byte
1 8 9
[.... 0...] [.... ....]
[.... 1...] [.... ....]
NOTE: For machine configuration 3 in Ram control mode (injection, pack
hold, and plasticate profiles), bit 5 selects the output range for output
(flow/pressure) command.
Bit 6 (Plasticate only)
Auto Cushion Control
Velocity Byte Pressure Byte
1 8 9
[.... .0..] [.... ....]
[.... .1..] [.... ....]
Bit 7 (Pack and hold only)
Velocity Transfer
Velocity Byte Pressure Byte
1 8 9
[.... ..0.] [.... ....]
[.... ..1.] [.... ....]
Bit 8 (Open loop mode only)
Velocity Ramping
Velocity Byte Pressure Byte
1 8 9
[.... ...0] [.... ....]
[.... ...1] [.... ....]
* See download table word 225 for hold values.
** Ramping functions only in open loop mode.
Description
16
Select 0 to +10 V output range for flow
command during profile*
Select 0 to –10 V output range for flow
command during profile*
Description
16
Auto cushion control off
Auto cushion control on
Description
16
Velocity transfer off
Velocity transfer on. This bit overrides
velocity mode set for pack and hold in
WY8 and runs pack and hold velocity in
open loop using the final velocity output
from inject as the setpoint. This
provides a bumpless transition for
velocity.
(Not functional in machine
configuration 3.)
Description
16
Select no velocity ramping
Select velocity ramping**