Control_Opts, Availability And Description; Status_Opts, Availability And Description - AUMA AUMATIC AC 01.2 Manual

Actuator controls
AC 01.2/ACExC 01.2 Foundation Fieldbus
6.5.

CONTROL_OPTS, availability and description

Bit Signification
0 Bypass Enable
1 SP-PV Track in Man
2 SP-PV Track in Rout
3 SP-PV Track in LO or
IMan
4 SP Track retained target
5 Direct Acting
6 Reserved
7 Track Enable
8 Track in Manual
9 Use PV for BKC-
AL_OUT
10 Act on IR
11 Use BKCAL_OUT with
IN_1
12 Obey SP limits if Cas or
RCas
13 No OUT limits in Manual
14 + 15 Reserved
6.6.

STATUS_OPTS, availability and description

Bit Signification
0 IFS if BAD IN
1 IFS if BAD CAS_IN
2 Use Uncertain as Good
3 Propagate Fault For-
ward
PID Description
X This setting can be used to enable the BYPASS function. Some control application
cannot provide closed loops if BYPASS is enabled.
X Allows the setpoint to track the process variable, if the target mode of the block
is MAN.
X Allows the setpoint to track the process variable, if the target mode of the block
is ROut.
X Allows the setpoint to track the process variable, if the target mode of the block
is LO or IMan.
X Allows the setpoint to track the RCas or Cas parameters based on the retained
target mode, if the actual mode of the block is IMan, LO, Man, or Rout. If the SP-
PV track options are enabled, the SP track retain target will have precedence in
the selection of the value to track if the actual mode is Man, IMan, Rout, or LO.
X Defined the relationship between a change in the process variable and the re-
spective output change. If Direct has been selected, a process variable increase
results in an output increase.
X
X This enables the external tracking function. When enabled, the value in TRK_VAL
replaces the OUT value if TRK_IN_D is set and the target mode is not Man.
X When enabled, the TRK_VAL value replaces the OUT value if TRK_IN_D is set.
this allows TRK_VAL to replace the OUT value if the target mode is Man and
TRK_IN_D applies. The actual mode is then LO.
X The BKCAL_OUT and RCAS_OUT values are normally the active setpoints (SP).
This option changes it into the process variable (PV) if the control cascade is
closed.
If enabled, the setpoint is adapted within the setpoint limits after receipt of IR on
the BKCAL_IN, and when closing the control cascade, a bumpless transfer is
guaranteed. If the setpoint required to provide a bumpless transfer is outside the
setpoint limits, any adaptation to ensure bumpless transfer will be removed again
within the BAL_TIME.
Normally, BKCAL_OUT is used to initialise a downstream block providing CAS_IN.
When this option is enabled, BKCAL_OUT is used for a downstream block
providing IN_1. This option can be used in combination with the ratio and the bi-
as/gain block to determine value and status, which must be made available in
BKCAL_OUT for correct initialisation and for handshake.
X Normally, the setpoint is not limited to the setpoint limit, except it is entered by a
user. When this option is selected, the setpoint is subject to the absolute setpoint
limits in Cas and RCas.
X OUT_HI_LIM or OUT_LO_LIM are not considered, if the target and actual modes
are set to Man.
AI DI AO DO PID Description
X Activate initiate fault state status in OUT parameter if the IN
parameter status is BAD.
X Activate initiate fault state status in OUT parameter if the
CAS_IN parameter status is Bad.
X If the IN parameter status is Uncertain, treat as if it were Good.
Otherwise, treat is as Bad.
X X If the sensor status is Bad, Device failure, Bad, or Sensor fail-
ure, transmit this status without issuing an alarm to the OUT
parameter. This option allows the user to determine whether
the alarm (sending an alert) is carried out by the block or
transmitted to upstream blocks for alarm issue.
Appendix
51