ABB COMMANDER C355 User manual

GETTING STARTED
The COMMANDER 350 can be configured and made ready for operation in three easy steps.
This 'Getting Started' guide provides an overview of these steps and, where necessary, refers to
the relevant section of the manual.
Step 1 – Decide on the Application Template and the
Output Configuration required
Step 2 – Connect the process inputs and outputs
Step 3 – Power up the instrument, set the template number and the output
configuration details
Your COMMANDER 350 is now ready for operation
Step 1 –Application Template and Output Configuration
• ChoosetheTemplatewhichbestsuitsyourapplicationfromthelistinTableA,locatedonthe
rear fold-out.
• Choose the Control Output Type required from the list of options in Table B on the rear
fold-out.
Step 2 –Electrical Connections
Using the labels on the back of the instrument as a guide, connect the process inputs, outputs
and power supplies. Refer to Section 6.2 of this manual (Electrical Installation) for more
information.
Continued…
ControlIT
1/4DIN Advanced Process Controller
Model C355
User Guide
IM/C355_9

GETTING STARTED
Fig. GS.1 Setting the Parameters
Step 3 –Setting the Parameters (Fig. GS.1)
A
Power-up the instrument. Press the and keys simultaneously and hold for 3
seconds to advance directly to Level 6 – Basic Configuration.
BSet the appropriate application template, output type and control action. Use the key to
advance between frames and upper and keys to adjust the default values – see
Section 5.2 for further information.
Note. When the output type has been selected, the available inputs and outputs default
to the settings shown in Table B on the rear fold-out.
CIf you are not using 4 to 20mA inputs, then select Level 7 using the upper and keys
and set up Analog Inputs I/P1 to I/P3 to suit your process – see Section 5.3.
DController templates only:
Select Level 2 using the upper and keys and set the tune parameters:
•Analog or Motorized Valve Control – set the Proportional, Integral and
Derivative terms.
•Time Proportioning Control – set the Cycle Time, Hysteresis and P, I & D Terms
•Heat/Cool Outputs – set the points at which the Output 1 and Output 2
become active.
E
Press to return to the Operating displays.
F
Adjust the set point to the required value.
Your COMMANDER 350 is now in operation
APPL
LEV.6
INPt
LEV.7
tUNE
LEV2
B
C D
+
A
01.SL
t.APP
ANLG
O.tYP
rEV
C.ACt
50
FrEJ
EF
350.0
351.5
70
350.0
351.5
70
350.0
351.5
70
Note. With the above
configuration,noalarmsor
limits have been set and
advanced functionality
(gain scheduling, set point
sources etc.) has not been
enabled.
ABB
BS EN ISO 9001:2000
Cert. No. Q5907
The Company
We are an established world force in the design and manufacture of
instrumentation for industrial process control, flow measurement, gas and
liquid analysis and environmental applications.
AsapartofABB,aworldleaderinprocessautomationtechnology,weoffer
customers application expertise, service and support worldwide.
We are committed to teamwork, high quality manufacturing, advanced
technology and unrivalled service and support.
The quality, accuracy and performance of the Company’s products result
from over 100 years experience, combined with a continuous program of
innovative design and development to incorporate the latest technology.
The UKAS Calibration Laboratory No. 0255 is just one of the ten flow
calibration plants operated by the Company, and is indicative of our
dedication to quality and accuracy.
✶
Note.
Clarification of an instruction or additional
information.
Information.
Further reference for more detailed information or
technical details.
EN 29001 (ISO 9001)
Lenno, Italy – Cert. No. 9/90A
Use of Instructions
Warning.
An instruction that draws attention to the risk of
injury or death.
Caution.
An instruction that draws attention to the risk of
damage to the product, process or surroundings.
R
E
G
I
S
T
E
R
E
D
Health and Safety
To ensure that our products are safe and without risk to health, the following points must be noted:
1. The relevant sections of these instructions must be read carefully before proceeding.
2. Warning labels on containers and packages must be observed.
3. Installation,operation,maintenanceandservicingmust only becarriedoutbysuitablytrainedpersonneland
in accordance with the information given.
4. Normal safety precautions must be taken to avoid the possibility of an accident occurring when operating in
conditions of high pressure and/or temperature.
5. Chemicals must be stored away from heat, protected from temperature extremes and powders kept dry.
Normal safe handling procedures must be used.
6. When disposing of chemicals ensure that no two chemicals are mixed.
Safetyadvice concerningthe useof the equipment described in this manual or any relevant hazard data sheets
(where applicable) may be obtained from the Company address on the back cover, together with servicing and
spares information.
Although Warning hazards are related to personal injury, and Caution hazards are associated with equipment or
property damage, it must be understood that operation of damaged equipment could, under certain operational
conditions, result in degraded process system performance leading to personal injury or death. Therefore, comply
fully with all Warning and Caution notices.
Information in this manual is intended only to assist our customers in the efficient operation of our equipment. Use
of this manual for any other purpose is specifically prohibited and its contents are not to be reproduced in full or part
without prior approval of the Technical Communications Department.

1
OVERVIEW
This manual is divided into 6 sections which contain all the information needed to install, configure,
commission and operate the COMMANDER 350. Each section is identified clearly by a symbol as
shown in Fig. 1.
Fig. 1 Overview of Contents
Displays and Controls
• Displays and Function Keys
• LED Indication
• Error Messages
Operator Mode (Level 1)
• Single Loop Controller
• Motorized Valve Controller
• Auto/Manual &
Backup Stations
• Feedforward Controllers
• Cascade Controllers
• Ratio Station/Controller
Profile Mode
(Levels P, r and t)
• Level P – Profile States
• Level r – Profile Control
• Level t – Profile Program
8
Set Up Mode (Levels 2 to 5)
• Level 2 – Tuning
• Level 3 – Set Points
• Level 4 – Alarm Trip Points
• Level 5 – Valve Setup
Configuration Mode (Levels 6 to E)
• Level 6 – Basic Configuration
• Level 7 – Input Configuration
• Level 8 – Alarm Configuration
• Level 9 – Set Point Configuration
• Level A – Control Configuration
• Level B – Operator Configuration
• Level C – Output Configuration
• Level D – Serial Communications
• Level E – System Calibration
Installation
• Siting
• Mounting
• Electrical Connections
Fig. 2 Foldouts
Fig. 3 Accessories
Getting
Started
Getting
Started Tables A – Template
B – Output So
Tables C – Digital Source
s
D – Analog Source
s
Pull-up Resistors
2 x 100kΩShunt Resistors 3 x 100ΩPanel Clamps x2 CJ Sensor x2

2
CONTENTS
Section Page
OVERVIEW.................................................... 1
1 DISPLAYS AND FUNCTION KEYS........ 3
1.1 Introduction ....................................... 3
1.2 Use of Function Keys........................ 4
1.3 Secret-til-Lit Indicators...................... 8
1.4 Character Set.................................... 8
1.5 Error Messages ................................ 9
1.6 Processor Watchdog....................... 10
1.7 Loop Break Monitor ........................ 10
1.8 Glossary of Abbreviations .............. 10
2 OPERATOR LEVEL ............................... 11
2.1 Introduction ..................................... 11
2.2 Single Loop Controller
(Templates 1 and 2) ........................ 12
2.3 Auto/Manual Station
(Templates 3 and 4) ........................ 15
2.4 Analog Backup
(Templates 5 and 6) ........................ 17
2.5 Indicator/Manual Loader Station
(Templates 7 and 8) ........................ 20
2.6 Single Loop with Feedforward
(Templates 9 and 10) ...................... 21
2.7 Cascade Control
(Templates 11 and 12) .................... 24
2.8 Cascade Control with Feedforward
(Template 13) .................................. 27
2.9 Ratio Controller
(Templates 14 and 15) .................... 30
2.10Ratio Station
(Templates 16 and 17) .................... 32
2.11Heat/Cool Output Types.................. 34
2.12Motorized Valve Output Types ........ 35
2.13Auto-tune......................................... 36
2.14Control Efficiency Monitor .............. 39
3 PROFILES ............................................. 42
3.1 Introduction .................................... 42
3.2 Introduction to Ramp/Soak Profile
Control............................................. 43
3.3 Profile States ................................. 48
3.4 Ramp/Soak Profile Control............ 49
3.5 Ramp/Soak Profile Program.......... 53
4 SET UP MODE ...................................... 56
4.1 Introduction .................................... 56
4.2 Level 2 – Tune................................ 57
4.3 Level 3 – Set Points ....................... 61
4.4 Level 4 – Alarm Trip Points ............ 63
4.5 Level 5 – Valve Setup .................... 64
Section Page
5 CONFIGURATION MODE ..................... 67
5.1 Introduction ..................................... 67
5.2 Level 6 – Basic Configuration......... 68
5.3 Level 7 – Analog Inputs .................. 72
5.4 Level 8 – Alarms ............................. 76
5.5 Level 9 – Set Point Configuration ... 80
5.6 Level A – Control Configuration ..... 83
5.7 Level B – Operator Configuration... 88
5.8 Level C – Output Assignment
Configuration................................... 91
5.9 Level D – Serial
Communications Configuration ...... 97
5.10Level E – Calibration....................... 98
6 INSTALLATION ................................... 101
6.1 Mechanical Installation ................. 101
6.2 Electrical Installation..................... 105
6.3 Relays ........................................... 108
6.4 Digital Output ................................ 108
6.5 Control or Retransmission
Analog Output ............................... 108
6.6 Motorized Valve Connections ....... 109
6.7 Input Connections......................... 109
6.8 Output Connections ...................... 110
6.9 Power Supply Connections........... 110
SPECIFICATION ....................................... 111
APPENDIX A – CONTROLTEMPLATES 115
A1 Single Loop Controller
(Templates 1 and 2) ...................... 115
A2 Auto/Manual Station and Analog
Backup Station.............................. 116
A3 Indicator/Manual Loader Station
(Templates 7 and 8) ...................... 119
A4 Single Loop Controller with
Feedforward
(Templates 9 and 10) .................... 120
A5 Cascade Controllers
(Templates 11 and 12) .................. 121
A6 Cascade Controller with
Feedforward (Template 13)........... 122
A7 Ratio Controller
(Templates 14 and 15) .................. 123
A8 Ratio Station
(Templates 16 and 17) .................. 124
APPENDIX B – COMMANDER
CONFIGURATION EDITOR ...................... 125
FRAMES INDEX ....................................... 127
INDEX ........................................................ 131
NOTES....................................................... 134

3
1 DISPLAYS AND FUNCTION KEYS
1.1 Introduction
TheCOMMANDER350frontpaneldisplays, function keys and l.e.d.indicatorsareshowninFig.1.1.
COMMANDER 350
PV
SP
OP Y
X
350.0
351.5
70
MST SLV R
M OP1 OP2 FF
W
Function Keys
Auto/manual
Raise
Local/Remote
LL
R
Parameter
Advance
Alarm
Acknowledge
Lower
Up Down
Fig. 1.1 Front Panel Displays and Function Keys

4
…1 DISPLAYS AND FUNCTION KEYS
1.2 Use of Function Keys
Fig. 1.2a Use of Function Keys
350.0
351.5
70
D – Auto/Manual Key
Use to select Auto or Manual control mode
A – Raise and Lower Keys
Use to change/set a parameter value… …move between levelsand…
C – Parameter Advance Key
Use to advance to the next
frame within a level… or… …select the top (LEV.x) frame from within a level
Note. This key also stores any changes made in the previous frame
LEV2
tUNE
CYCl
5.0
Frame 2
Frame 1
(top of level)
B – Up and Down Keys
and…
bIAS
50.0 51.0
49.0
+
–
LEV1
OPEr
LEV2
tUNE
…move between frames within a Setup
or Configuration level. Any changes made
on the current frame are stored when the
next frame is selected.
LEV2
tUNE
CYCl
5.0
Frame 2
Frame 1
(top of level)
Press and hold
LEVx
1001
1002
1003
Use to adjust the output value…
700 710
690
+
–
Auto Manual
Process Variable
Control Set Point
Control Output (%)
M
2.00
2.01
350.0
351.5
70

5
1 DISPLAYS AND FUNCTION KEYS…
…1.2 Use of Function Keys
Fig. 1.2b Use of Function Keys
E – Alarm Acknowledgement
Any active,
unacknowledged alarms All active
alarms acknowledged
(Flashing)
200.3
1.HP1 2003 1HP1
ACt
ACK
LAt
or
CLr
ACK
LAt
or
200.3
2.xxx
ACt
1
23
4
Unacknowledged
alarms only
(On continuously) (Off)
No active
alarms present
Pressing again acknowledges the displayed alarm.
Lower display changes to reflect new status.
3
Next active and unacknowledged alarm is displayed. If no alarms
are active, the next enabled alarm is displayed.
4
High Process, PV High Output
Low Process, PV Low Output
High Latch, PV Power Failure Time
Low Latch, PV Math Block 1 High
High Deviation Math Block 1 Low
Low Deviation Math Block 2 High
High Process I/P1 Math Block 2 Low
Low Process I/P1 Math Block 3 High
High Process I/P2 Math Block 3 Low
Low Process I/P2 Math Block 4 High
High Process I/P3 Math Block 4 Low
Low Process I/P3
The first active and unacknowledged alarm is displayed
(or if no alarms are active, the first enabled alarm is displayed)
1
The lower display shows alarm status:
ACt Alarm active and unacknowledged
ACK Alarm active and acknowledged
CLr Cleared or Inactive alarm
LAt Unacknowledged latched alarm
2
HPV HO
LPV LO
HLP PF.t
LLP Hb1
H Lb1
L Hb2
HP1 Lb2
LP1 Hb3
HP2 Lb3
LP2 Hb4
HP3 Lb4
LP3
Note. The time of the power failure,
PF.t, is shown in the set point display.
350.0
351.5
70
350.0
351.5
70
Note. If no alarms have been enabled in the Set Up level, pressing
the key has no effect.

6
…1 DISPLAYS AND FUNCTION KEYS
…1.2 Use of Function Keys
Fig. 1.2c Use of Function Keys
350.0
450.2
70
F – Local / Remote Key
Changing between Local and Remote Set Points
Selecting Local Set Points 1 to 4
Selecting Master and Slave Set Points – Cascade Mode
Process variable and local set point 2 displayed
400.0
450.2 475.0
450.2
243
L
L
R
Process variable and local set point 1 displayed.
1
1
2
Process variable and local set point 3 displayed
3
Process variable and local set point 4 displayed
LL
R
475.0
450.2
LL
R
4
LL
R
400.0
450.2 400.0
450.2
243
L
L
R
R
LL
R
1
4
Remote set point (ratio) value is displayed. The value and symbol flash to
indicate local set point (ratio) still selected.
Process variable and local set point (ratio) displayed on red and green displays.
1
2
Remote set point (ratio) selected.
3
Remote selection aborted.
R
When the MST indicator
(see Fig 1.3) is lit, the
key can be used to
switch between the Master
local and remote set points
12
L
L
R
When the SLV indicator (see
Fig 1.3) is lit, the key
can be used to switch
between the local slave
set point and the cascade
slave set point generated
from the master output.
L
L
R
Note. When anAnalog Backup template is selected, the key is used
to switch between local and remote mode – see Sections 2.4 and 5.2.
L
L
R
M.SPt
OP1
Local S.SPt
Slave PID
Control Loop
M.PV
Master
PID
Control Loop
LSPt S.SPt
M.OP x
CrtO + CbIA
RSPt
S.PV
LL
RLL R
Abbreviations are
detailed in Section 1.8.
R
350.0
450.2
70
350.0
450.2
70
350.0
450.2
70

7
1 DISPLAYS AND FUNCTION KEYS…
…1.2 Use of Function Keys
Fig. 1.2d Use of Function Keys
G – Short-cut Keys
Press to move from anywhere in
the Configuration level to the first
frame in the Operator level
Press to move from
anywhere in the
Operator or Setup
levels to the first page
of the Configuration
level
LEVA
CntL
LEV1
OPEr
LEV6
APPL
Press simultaneously and
hold for 3 seconds
+
Press to move from the Operator Level to the
Security Code Frame and then to other levels:
Tune Level – See Section 2.13.3
Set Up Level – See Fig. 4.1
Configuration Level – See Fig. 5.1
COdE
0
350.0
351.5
70
350.0
351.5
70
Note. This Short-cut operates
only when the Configuration password
is set to '0'.

8
…1 DISPLAYS AND FUNCTION KEYS
1.3 Secret-til-Lit Indicators
1.4 Character Set – Fig. 1.4
Fig. 1.3 Secret-til-lit Indicators
Fig. 1.4 Character Set
70
M OP1 OP2 FF
350.0
MST SLV R
350.0
351.5
70
M
OP1
OP2
FF
OFF
Auto control
selected
ON
Manual control
selected
Output 1 (heat)
value displayed
Output 2 (cool)
value displayed
Feedforward
disturbance
variable displayed
Valve opening
Valve stopped
Valve closing
Flashing
Autotune in
progress
OFF
No alarms active
Local set point
in use
ON
All active alarms
acknowledged
Master controller
parameters
displayed
Slave controller
parameters
displayed
Remote or
Cascade set
point in use
Flashing
One or more
alarms active and
unacknowledged
A – Upper Display
B – Lower Display
MST
SLV
R
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
R
S
T
U
V
Y
A
b
C
E
F
G
H
I
J
K
L
M
N or n
O
P
r
S
t
U
V
Y

9
1 DISPLAYS AND FUNCTION KEYS…
1.5 Error Messages
350.0
351.5
350.0
351.5
350.0
351.5
350.0
351.5
350.0
351.5
350.0
351.5
350.0
351.5
Error/Action
Calibration Error
Turn mains power off and on again
(if the error persists contact the
Customer Support Organization).
Non-volatile Memory Error
x = 1: Processor Board Memory
x = 3: Power Supply Board Memory
Turn mains power off and on again
(if the error persists, check
configuration/setup settings).
A to D Converter Fault
The analog to digital converter is not
communicating correctly.
Input Value Over/Under Range
Auto-tune Error
Number displayed indicates the type
of error – see Table 2.1.
Cold Junction Failed
Cold junction sensor is faulty or has
not been fitted correctly.
Remote Set Point Failed
Input value is over or under-range.
Only appears if the remote set point
is displayed or in use.
External Ratio Fail
Input value is over or under-range. Only
when templates 14 to 17 are used
Position Feedback Fail
Input value is over- or under-range.
Only appears if output type set to
'PFb' – motorized valve with feeback.
Valve Sticking
Motorized valve not moving at the
speed expected. Valve may be
sticking.
To clear the display:
Press the key
Press the key
Contact the Customer
Support Organization
Restore valid input
Press the key
Check connections or replace
if faulty.
Restore valid input
Restore valid input
Restore valid input
Check that the correct
Regulator Travel Time has
been set – see Section 4.5.
Check the valve.
Display
CAL
Err
9999
t.Err
1
StK
A-
Err
Err
NVx
CJ.F
1
rAt.F
9999
350.0
351.5
rSP.F
9999
999

10
…1 DISPLAYS AND FUNCTION KEYS
1.6 Processor Watchdog
The instrument's processor activity is monitored by an independent watchdog device. When the
output of the watchdog is assigned to a relay or digital output, the relay/digital output de-energizes
if the instrument fails to function correctly.
1.7 Loop Break Monitor
Analogoutput1ismonitoredcontinuouslytodetect a loopbreak.Awarningsignalorotheractioncan
be initiated by assigning the loop break signal to relays or digital outputs.
1.8 Glossary of Abbreviations
Table 1.1 Glossary of Abbreviations
noitaiverbbAnoitpircseDnoitaiverbbAnoitpircseD
VPelbairaVssecorP1id1tupnIlatigiD
tPSLeulaVtnioPteSlacoL2id2tupnIlatigiD
1PSLeulaV1tnioPteSlacoL3id3tupnIlatigiD
2PSLeulaV2tnioPteSlacoL4id4tupnIlatigiD
3PSLeulaV3tnioPteSlacoL1oa1tuptuOgolanA
4PSLeulaV4tnioPteSlacoL2oa2tuptuOgolanA
tPSCeulaVtnioPteSlortnoC1od1tuptuOlatigiD
tPSReulaVtnioPteSetomeRVP.MelbairaVssecorPretsaM
P/ODIPmhtiroglADIPehtfotuptuOtPS.MtnioPteSlortnoCretsaM
1PO)taeh(1tuptuOrellortnoCPO.MtuptuODIPretsaM
2PO)looc(2tuptuOrellortnoCtPS.StnioPteSevalS
1P/I1tupnIgolanAVP.SelbairaVssecorPevalS
2P/I2tupnIgolanAVWelbairaVdliW
3P/I3tupnIgolanAVDelbairaVecnabrutsiD

11
2.1 Introduction
The Operator level (Level 1) is the normal day-to-day mode of the COMMANDER 350. This section
describes the operator facilities available on each frame depending on the control template and
output type selected.
The template types detailed in this section are:
• Single loop controller
• Auto/Manual station
• Analog backup station
• Indicator/manual loader station
• Single loop with feedforward control
• Cascade control
• Cascade with feedforward
• Ratio controller
• Ratio station
Note. Only the frames relevant to the selected template are displayed – see Section 5.
Inaddition,framesusedtoviewthe Control EfficiencyMonitorandoperatemotorizedvalveandheat/
cool output types are also described.
2 OPERATOR LEVEL
Fig. 2.1 Power-up Displays
01.SL
C355 Model – C355, Advanced Version
Template (see rear fold-out)
Software series
Software version
04
2001

12
…2 OPERATOR LEVEL
Fig. 2.2 Single Loop Controller
2.2 Single Loop Controller (Templates 1 and 2)
The single loop controller is a basic feedback control system using three-term PID or on/off control
with either a local set point (template 1) or remote set point (template 2).
PID
Control Loop PID O/P
CSPt
I/P2
PV
I/P1
Manual Output
OP1
Remote Set Point Input
Process Variable Input
•1 Template 2 Only
•1
LSPt
I/P2 x rAtO + bIAS
RSPt
LLR
Local Set Point
Control
Output
Profile Set Point

13
350.0
351.5
70
PV – CSPt
Deviation
OP1
•1
1.000
rAtO
OP1
•2
5.000
bIAS
OP1
•3
2 OPERATOR LEVEL…
Process Variable
Control Set Point
['SPLO' to 'SPHI' – see Section 5.5]
Adjustable in Local Control Only
Control Output
[0 to 100% (digital/relay outputs),
–10 to 110% (analog outputs)]
Adjustable in manual mode only. With on/off control
selected, 0% = control output off, 100% = control
output on. In manual mode, intermediate values can
be selected. These use 'time proportioning' with a
60s cycle time, e.g. 25% = 15s on, 45s off.
Remote Set Point Ratio
[0.001 to 9.999]
Remote set point value =
(ratio x remote set point input) + bias
Remote Set Point Bias
[In engineering units]
Continued…
•1 With the Ramping Set Point function enabled (see Section 4.3, Set Points/ Ramp Rate), the
bargraph shows the actual (ramping) set point value and the digital display shows the target set
point value.
•2 Displayed only if template 2 selected and Ratio Display is enabled – see Section 5.2, Basic
Configuration and Section 5.7, Operator Configuration.
•3 Displayed only if template 2 selected and Bias Display is enabled – see Section 5.2, Basic
Configuration and Section 5.7, Operator Configuration.
…2.2 Single Loop Controller (Templates 1 and 2)

14
t. 3.9
SOAK
9.30
•1
X.NN
Current Segment Number
Current Program Number
•2
•3
…2 OPERATOR LEVEL
…2.2 Single Loop Controller (Templates 1 and 2)
Profile Status
SOAK – Soak segment running
rAMP – Ramp segment running
StOP – Stopped
EN – End
O.HL – Operator hold
M.HL – Manual hold
H.HL – Holdback hold
r.HL – Retort hold
r.rMP – Retort ramp
Time Remaining in Segment
[0.0 to 99.9 hours or minutes]
Allows the total segment time to be increased or
decreased by the Time Adjust Value set in the
Profile Control Level. If the current segment is a
ramp, it will change the ramp rate.
Current Program/Segment
[1.01 to 9.30]
When the program is running or held:
Press to skip forward to the start of the next
segment.
Press to skip backwards to the start of the
current segment.
Return to top of page
•1 Profile Status is displayed only iframp/soak featuresare enabled– see Section 5.5, Level9 –Set
Point Configuration.
•2 Segment time adjustment can be disabled in the Ramp/Soak profile control level – see Section
3.4 frame r.18.
•3 Segment skip can be disabled in the Ramp/Soak profile control level – see Section 3.4
frame r.17.

15
2.3 Auto/Manual Station (Templates 3 and 4)
Fig. 2.3 Auto/Manual Station
di1
Master Output ao1
•1
•2
•1 Template 3 Only
•2 Template 4 Only
Digital Select
I/P2
Manual Output
Low Signal Select
(Alarm A1)
Auto / Manual
Select
Analog Output
Note. Refer also to Appendix A2.1 – Series and Parallel Operation.
The auto/manual station provides a backup for a master controller. In normal operation the
COMMANDER 350’s analog output follows the master controller’s output value. A fault in the master
system can be identified either by detecting a low signal on the master output (template 3) or via a
digital signal (template 4). When a fault is detected the COMMANDER 350 goes into manual mode
with its output either set to the last valid master output value or to a configured output value – see
Section 4.6, Control Configuration/ Configured Output 1. When the master output is restored or the
digital input returns to its inactive state, the COMMANDER 350 switches back to auto mode.
Note. The Alarm A1 Trip value must be set when using template 3.
2 OPERATOR LEVEL…

16
or
Low Master
Output Value
Digital Input
Active
or
•1
•2
•3
or
Restored
Master Output
Digital Input
Inactive
or
•1
•2
•3
50.0
55.0
70
50.0
55.5
50
M
•1 In template 4 the Auto/Manual switch is overridden by the digital input signal.
•2 Template 3 only – see Section 5.2, Basic Configuration/ Template Application.
•3 Template 4 only – see Section 5.2, Basic Configuration/ Template Application.
Auto Mode
Process Variable
Master Output (I/P2)
Control Output = Master Output
[Master Output, 0 to 100%]
Manual Mode
ControlOutput(underCOMMANDER350control)
[0 to 100%]
…2 OPERATOR LEVEL
…2.3 Auto/Manual Station (Templates 3 and 4)

17
2 OPERATOR LEVEL…
2.4 Analog Backup (Templates 5 and 6)
Fig. 2.4 Analog Backup Station
LSPt
I/P1
di1
Local Set Point PV
Process Variable
PID
Control Loop
Local/
Remote
Select
•1
•1 Template 5 Only
•2 Template 6 Only
Master Output
Digital Select
ao1
Manual Output
Low Signal Select
(Alarm 1)
LLR
Analog Output
I/P2
•2
CSPt
Profile Set Point
Note. Refer also to Appendix A2.1 – Series and Parallel Operation.
The analog backup station provides a backup for a master controller. In normal operation (remote
controlmode selected) theCOMMANDER350’s currentoutputfollows the mastercontroller’soutput
value. A fault in the master system can be identified either by detecting a low signal on the master
output (template 5) or via a digital signal (template 6). When a fault is detected the COMMANDER
350 switches into local control mode and the process is controlled by the PID output of the
COMMANDER 350. The COMMANDER 350 PID algorithm tracks the master output value
continuously in order to ensure bumpless transfer from remote to local mode operation. When the
master output is restored or the digital input returns to its inactive state, the COMMANDER 350
switches back to remote control mode.
Note. The Alarm A1 Trip value must be set when using template 5.

18
or
Restored
Master Output
Digital Input
Inactive
or
•1
•2
or
Low Master
Output Value
Digital Input
Active
or
•1
•2
350.0
351.5
70
PV – CSPt
Deviation
OP1
•1
50
OP1
R
Remote Mode
Process Variable
Set Point
['SPLO' to 'SPHI' – see Section 5.5]
Control Output = Master Output
[Master Output, 0 to 100%]
Local Mode
ControlOutput(under COMMANDER 350 control)
[0 to 100%]
Adjustable in Manual Mode only.
Continued…
…2 OPERATOR LEVEL
…2.4 Analog Backup (Templates 5 and 6)
•1 Template 5 only – see Section 5.2, Basic Configuration/ Template Application.
•2 Template 6 only – see Section 5.2, Basic Configuration/ Template Application.