Byte 0: Multiplier For The Start/Stop Rate (Ss); Byte 1: Limit Switch Configuration (Lsc) And Operating Modes; Byte 2: Time Interval (Ti) For Rate Increase/Decrease - Siemens SIMATIC S5 Manual

IP 267
4.1.2

Byte 0: Multiplier for the Start/Stop Rate (SS)

Bit 0 to 7: The process output image (PIQ) has "0" default after resetting. You
must enter a value between 1 and 255 in byte 0, otherwise the
configuration message frame will be ignored.
f
ss
BV =
SS =
R
4.1.3 Byte 1: Limit Switch Configuration (LSC) and Operating
Modes
Bit 1= 0: Inputs I+, I- (external STOP)
Bit 1= 1: Inputs I+, I- (external STOP)
Bit 4 to 5: Both configuration bits KB0 and KB1 must be "0" for the con-
figuration message frame to be accepted. This is always the case
during startup or when switching on the power.
4.1.4 Byte 2:
You determine the values for TI with bits TI 0 to TI 7. During the acceleration
phase, the rate is incremented from the start/stop rate f
each time interval by a quarter of the base value (BV) until the stepping rate f
reached. The stepping rate is decremented in the same way in the deceleration
phase.
EWA 4NEB 812 6061-02a
f (Hz) = BV(Hz) *
ss
= Start/stop rate
Base value for the rate ( Table 4-4.)
Multiplier for the start/stop rate (1 to 255)
= Reduction factor (1 or 0.1). This factor is determined
during the current positioning job.
"0"-active (NC)
"1"-active (NO)
Time Interval (TI) for Rate Increase/Decrease
Addressing and Programming
SS * R
. It is incremented in
ss
4
is
A
4-5