Siemens SIPART DR21, Manual

Page: 66 / 242

3 Functional description of the structure switches
3.4 Controller types (S1, S42 to S45)
Manual
66
SIPART DR21
C73000-B7476-C143-08
Control signals Message signals
Digital
inputs
Front Front
Digital
outputs
active w at
E l ti
H
∨
N
∨
Si
CB
1)
Inter-
nal
In-
ter-
nal
LED
C
LED
RB
4)
RC
4)
S43=0
S44=0 S43=1
S44=0 S43=0
S44=1 S43=1
S44=1
Explanations
0 1 0 0 0 0 0 w
E
2)
w
E
2)
0 0 0 0 1 0 1 wi(
↗
)
SH
3)
or
wi(
↗
)
Automatic mode 5)
0 1 1 1 0 1 1 wi(
↗
) wi(
↗
)
0 0 1 1 1 1 1 wi(
↗
) wi,
↗
)
1 1 0 0 0 0 0 w
E
2)
x w
E
2)
x
1 0 0 0 1 0 1 wi(
↗
) x
SH
3)
or
wi(
↗
)
x
Manual-, tracking- or safety
mode 5)
1 1 1 1 0 1 1 wi(
↗
) x wi(
↗
) x
1 0 1 1 1 1 1 wi(
↗
) x wi(
↗
) x
1)
The table is shown for static computer switching without acknowledgement (S41 = 0).
2)
Source for w
E
at S85 = 1, 2, (4, 5 as of software version -A5) is w
EA
or at S85 = 3, 4 w
ES
. Switching between the set-
points can take place with the setpoint ramp tS.
3)
SH can only be reached after w
E
, if Int = 0 and CB goes from 1
→
0 (computer failure). If CB = 0 and Int is switched
from 1
→
0, wi is still active. Since SH is not tracked, switching over to SH can take place with the setpoint ramp tS.
4)
By OR-linking with the digital outputs H, N and the control signal Si no computer standby or computer operation can be
signaled in manual-, tracking- or safety operation.
5)
Factory setting
↗
adjustable
Factory setting
Table 3-5 Slave-/synchronized-/SPC controller with Internal-/External switching (SPC-controller), S1 =
1 without tracking of the active setpoint to the active setpoint S45 = 1, 2 or 3 setpoint oper-
ation