Model 348

Controllers
FIELDPAC™ 348 Field-Mounted Controller
Introduction
Features & Benefits
The need for only one wire pair to communicate with the
control room reduces wiring costs
Combines multiple loop components in a single package for
reduced hardware and maintenance costs
Improves loop accuracy by using digital technology
and by eliminating data communication errors among
multiple components.
2
The ability to communicate with the controller from a remote,
central location improves operations
Implementation of the HART® communication protocol
facilitates use with many control system devices
Factory Configured Options (FCOs) reduce configuration time
for standard control strategies
Flexible input options accommodate existing I/O
Description
The FIELDPAC 348 Field-Mounted Controller supports an
advanced single-loop control applications, while reducing
installed costs. The FIELDPAC controller lowers hardware costs
by providing multiple loop components in one package and
decreases wiring costs by reducing to one the number of wire
pairs needed to transmit data to a central control room.
The loop components integrated within the FIELDPAC controller
are based on the proven technology of several other instruments,
including the Siemens Controllers, pressure transmitters, and
I/P and P/I converters. This combination allows the FIELDPAC
controller to provide an innovative, reliable controller that can
be mounted directly at the process site.
The FIELDPAC controller includes a TYPE 4X (IP65) enclosure
and a hazardous area design (intrinsically safe and nonincendive) to allow installation at the process site. It offers
several choices of direct process inputs, optional pneumatic
or thermocouple/RTD inputs, and an optional pneumatic
output, all of which are in addition to the standard complement
of 4-20 mA inputs and discrete I/O.
The FIELDPAC controller also minimizes wiring costs via the HART
protocol. With HART digital signal, the FIELDPAC controller
transmits process data to a control room over one standard wire
pair, instead of the three to four wire pairs required by a typical
loop. Using HART also allows the FIELDPAC controller to
communicate with many other devices, because HART has the
largest base of any field communications protocol.
The FIELDPAC controller accommodates control strategies
ranging from basic PID control to sophisticated loops, such as
2.18
ratio, bias, single-station cascade, dual-loop and feed-forward
control. Circuits are configured via the same function block
technique employed with the Model 353 Process Automation
Controller, where the user simply selects the desired blocks,
connects them, and sets parameters, such as gains and timer
values. Moreover, the FIELDPAC controller provides over
60 pre-configured function blocks containing more than
200 functions.
In addition, the FIELDPAC controller provides many preconfigured control strategies (FCOs). Each FCO can be used
as is, or customized as needed, significantly reducing
configuration time for standard control requirements.
The FIELDPAC controller is configured locally or at a remote
PC. The station’s pushbuttons allow the FIELDPAC controller to
be configured at the faceplate.
Controllers
FIELDPAC™ 348 Field-Mounted Controller
Technical data
Specifications
Electrical
Pneumatic Inputs (Optional)
AC Power Supply (348EA_)
15 PSIG (103 kPa) Sensor:
Standard Calibration: 3 to 15 psig (20.7 kPa to 103 kPa)
Zero: 0 to 4 psig (0 to 27.6 kPa)
Span: 12 to 15 psig (82.7 kPa to 103 kPa)
30 PSIG (207 kPa) Sensor:
Zero: 0 to 8 psig (0 to 55.1 kPa)
Input: 90-264 Vac, 47 to 63 Hz
Voltage Selection: Auto-sensing
Power Consumption: 32 VA
Span: 24 to 30 Psig (165 kPa to 207 kPa)
Accuracy: ±0.35% of span
Temperature Effect: < 0.06% per oC
2-Wire Transmitter Power (348E_)
Input Types
Voltage: DC-Powered: 4.5 V less than VPS
AC-Powered: 22 Vdc (nominal)
Current: 80 mA (max.), short circuit protected
Thermocouple: R, S, T, B, J, K, E, N
RTD: DIN:a = 0.003850W/oC
US: a = 0.003920W/oC (100, 200 & 500 W available)
Heat Dissipation
mV Wide: Zero: -15 to 100 mVdc
Span: 5 to 115 mVdc
DC Power Supply (348_D)
Input: VPS = 14.0-28.0 Vdc
Power: Consumption: 4.4 Watts (max.)
DC-Powered: 3.5 BTU/hr.
AC-Powered: 4.6 BTU/hr.
Mounting
Type: Panel, 2" Pipe, or Wall
Panel Cutout: 11.5" H x 10.0" W, ±0.1
292 mm H x 254 mm W, ±2.5 mm
mV Narrow: Zero: -10 to 25 mVdc
Span: 1 to 35 mVdc
Input Impedance: > 1 megohm
Direct Process Pressure (Optional)
Environmental
Types: Gauge, Differential, Absolute
See information on direct process pressure input, page 2.21
Hazardous Area Classification
Outputs
348S: Intrinsically Safe
CSA Class I; Division 1; Groups C, D
CSA Class II; Division 1; Groups E, F, G
CSA Class III; Division 1
Analog Outputs
Ambient Temperature Range
Standard Calibration: 4 to 20 mA
Accuracy: < ±0.1% of span
Load: DC Power: < [(V-6.83)/21.6]W
AC Power: < 680W
Signal Reference: Negative terminal is controller common
Temperature Effect: ±0.5% per 50oC
-40 to 85oC (-40 to 185oF)
Discrete Outputs
Humidity
Type: Open collector transistor (emitter tied to controller common)
Load Voltage: 30 Vdc (max.)
Load Current: 100 mA (max.)
“ON” Voltage: 0.9V @ 100 mA
“OFF” Leakage: 0.5 uA @ 30 Vdc
348E: FM/CSA Class I; Division 2; Groups A, B, C & D
CE Compliant
0 to 100%
ESD Susceptibility
15,000 volts discharged to case and keyboard
5,000 volts to any terminal connection
Surge Protection
ANSI/IEEE C37.90, 1.5 kV
Inputs
Analog Inputs
Standard Calibration: 1 to 5 Vdc
Zero: 0 to 1 Vdc
Span: 4 to 5 Vdc
Input Impedance: > 1 megohm
Type: Single-ended (non-isolated)
Normal Mode Rejection: -64 dB @ 60 Hz
Maximum Continuous Input: ±30 Vdc
Accuracy: < ±0.85 % per 50oC
Digital Inputs
Logic “1” (ON): 12 to 30 Vdc
Logic “0” (OFF): 0 to 5 Vdc
Type: Opto-coupled (isolated)
Input Impedance: 3300 ohms
Isolated Discrete Outputs
Type: Opto Transistor
Load Voltage: 30 Vdc (max.)
Load Current: 50 mA (max.)
“ON” Voltage: 5.0 V @ 20 mA; 0.5 V @ 2 mA
“OFF” Leakage: 2.0 mA @ 30 Vdc
Relay Outputs
Type: Epoxy sealed
Switch: SPDT (Form C)
Rating: 3A @ 250 Vac
Pulse Integrator Output
Type: Open collector transistor (emitter tied to common)
Load Voltage: 30 Vdc (max.)
Load Current: 100 mA (max.)
“ON” Voltage: 0.9 V @ 100 mA
“OFF” Leakage: 0.5 uA @ 30 Vdc
2.19
2
Controllers
FIELDPAC™ 348 Field-Mounted Controller
Technical data
Function Blocks
Model Number
Control strategies within the FIELDPAC controller are designed
using the following function blocks, which are stored in
memory. The blocks are used by assigning an execution
sequence number to each block.
Intrinsically Safe
Field-Mounted Controller
Non-Incendive
Field-Mounted Controller6
Qty., Qty., Std./
348S 348E Opt.
3
S
3
Input
Analog Input (1-5 Vdc)
2
S
2
Input
Discrete Input
1/31 1/31
O
Input
Pneumatic Input
1
1
Input
Process Pressure Input
O
1
1
O
Input
Thermocouple/RTD/mV Input
22
22
S
Output
Analog Output (4-20 mAdc)
2
2
S
Output
Discrete Output
2
0
S
Output
Isolated Discrete Output
0
2
S
Output
Isolated Relay Output
1
1
Output
Pulse Integrator Output
S
12
O
Output
Pneumatic Output (3-15/3-27 PSI) 12
1
1
S
Control
Ratio
1
1
S
Control
Bias
2
2
S
Control
HI/LO Setpoint Limit
1
1
S
Control
Override Selector
2
2
Control
Pushbutton Transfer Switch
S
2
2
S
Control
Process Alarms
2
2
S
Control
Controller (PID, ID, PD, PIDAG)
2
2
S
Control
Auto/Manual Transfer
1
1
S
Control
Integrator/Totalizer
2
2
S
Control
Setpoint Track & Hold
1
1
S
Control
General -Purpose Track & Hold
1
1
Control
General-Purpose Hold
S
9
9
S
Logic (AND, NAND, OR, NOR, XOR)
Control
1
1
S
Control
Deviation Amplifier
1
1
S
Control
Square Root Extractor
1
1
S
Control
Pulse Integrator
3
3
S
Math (add, subtract, multiply, divide)
Control
2
Control
Gain & Bias
2
S
1
1
S
Control
Lag
1
1
S
Control
Lead
1
1
S
Control
Rate Limiter
1
1
S
Control
Dead Time Table
2
2
S
Control
10-Segment Characterizer
1
Control
Repeat Cycle Timer
1
S
1
1
S
Control
General-Purpose Transfer
1
1
S
Control
Batch Switch
1
1
S
Control
Quad Comparator
1
1
S
Control
Delay Timer
1
1
S
Control
One Shot Timer
Control
Dual Transfer Switch
1
S
1
1
S
Operation Operator Display
1
1
S
Operation Password Security
1
1
Operation HART Interface
S
1
Type
2
Description
Power Supply
• 90-264 Vac, 47-63 Hz3
• 90-264 Vac, 47-63 Hz3
(CE Compliant)
• 14-28 Vdc, non-isolated
Operator’s Display
• Full-Function
• Full-Function with Backlight3
Process Pressure Input
• Direct-Connected D/P Sensor4
• Direct-Connected Pressure Sensor4
(gauge & absolute)
• Removable plug for future
sensor mounting
• Not Required
Analog Option Board
• (1) 15 PSIG Pneumatic Input
• (3) 15 PSIG Pneumatic Inputs
• (1) 30 PSIG Pneumatic Input
• (3) 30 PSIG Pneumatic Inputs
• Thermocouple/RTD/Millivolt Input
• Not Required
Analog Output No.1 Options
• 4-20 mA Current
• 15 PSIG Pneumatic
• 30 PSIG Pneumatic
Design Level
• Current Design
Reserved
• No Modifications
Reserved
• Reserved
Communications
• HART
Electrical Connections
• 1/4 NPT
• 1.5 Metric
Hazardous Area Classifications5
• FM/CSA Class I; Div.2;
Groups A, B, C & D
• CSA Class I; Div.1; Groups C & D
• BASEEFA TypeN
• CE Compliant
• Not Required
Order No.
348S348E■■■■ - ■■■■■■■
▲▲▲▲
▲▲▲▲▲▲▲
A
C
D
1
2
D
P
R
N
A
C
D
F
T
N
1
2
3
B
N
N
H
1
2
4
Y
9
E
N
1) Analog input #1 is not available when the option for (1) or (3) pneumatic inputs is used, and analog input #3 is not available when the option for (3)
pneumatic inputs is used.
2) Analog output #1 is used to drive the I/P output and is not available as a current output when the pneumatic output option is used.
3) Model 348E only.
4) Refer to the information on direct process pressure input on page 2.21 for the model number used to specify sensor options. For example, the differential pressure
version of the “Direct Connect” output option (D) of each model number is used to indicate a FIELDPAC application.
5) Other agency approvals pending.
6) Approved intrinsic safety barriers are required for Div.1 installations.
2.20
Controllers
FIELDPAC™ 348 Field-Mounted Controller
Accessories
Standard Configurations
Model Number
Order No.
The most common types of control have been configured at
the factory and stored in the FIELDPAC controller’s memory.
These control strategies, called FCOs, can be easily recalled
from memory and used as is or modified to meet individual
requirements. They include:
Differential Pressure
Absolute Pressure
Gauge Pressure
340D340A-
Input Range: Span Limits Min/Max
• 0.2/5" H20 (model 340D only)
• 0.75/15" H20 (model 340D only)
• 10/450" H20
• 12.6/450 PSI
• 300/5500 PSIG (model 340G only)
Output
• Direct Connection to Model 348 Field
Mounted Controller or Spare Capsule
Process Diaphragm
• Hastelloy C-276 (Standard on
Ranges D, F, and G)
• 316LSS (Standard on Ranges A & B)
Body Parts
▲▲▲▲
Single-loop PID controller
External-set PID controller
Ratio-set PID controller
Cascade controller
Dual-loop controller
Accessories
1
FIELDPAC Configuration Software (P/N 15939-48Vx.xx ) PC-based software package for configuring the FIELDPAC
controller (DOS-based).
Resistor Kit (P/N 16161-111) – For use with 4-20 mA
inputs (250W).
Permanent Instrument Tag – The instrument name-plate
can be stamped with up to three lines of text (at up to 30
characters per line).
Extended Mounting Bracket (P/N 16161-88) – Provides
additional room for mounting. Order 2 when wall mounting a
FIELDPAC unit with direct-connected D/P sensor or when
pipe-mounting a FIELDPAC unit with a three-valve manifold
and a D/P sensor. Should not be used in an area with
excessive vibration.
Mounting Bracket (P/N 16161-197)
Hart Modem (P/N 16275-235 – The Hart modem is a
Bell 202T style modem for use with the PC configuration
software package.
24 V ac/dc Barrier/Supply Kit (P/N 16161-140 Stahl 9381/
10-158-160-10) – This approved barrier/supply
combination powers the Model 348S when installed in
Div. 1, Class1, Groups C, & D; Class ll, Groups E, F & G;
and Class lll areas. The barrier/supply converts its
nominal 24 Vac/dc input into an approved, barrier protected
15 Vdc power source for the Model 348S.
120/240 Vac Barrier/Supply Kit (P/N 16161-141 Stahl 9381/
10-158-160-50) – This approved barrier/supply
combination powers the Model 348S when installed in
Div. 1, Class 1, Groups C & D; Class ll, Groups E, F & G;
and Class lll areas. The barrier/supply converts its nominal 120/240 Vac input into an approved, barrier protected
15 Vdc power source for the Model 348S.
Hart Signal Barrier Kit (P/N 16161-142 Stahl 9001/02/-016015-10) – This approved barrier conditions Hart
signals passing to the Model 348S when installed in Div. 1,
Class 1, Groups C, & D; Class ll; Groups E, F, & G; and
Class lll areas.
Wetted
Vent/Drain
• 316SS
End
340G-
■■■■ - ■■■■■■
▲▲▲▲▲▲
A
B
D
F
G
2
D
H
S
Process
Connection
1/2 NPT (Standard
on all Ranges)
Side (top)
1/2 NPT (model 340D only)
Side (bottom) 1/2 NPT(model 340D only)
Side (dual) 1/2 NPT(model 340D only)
End
1/4 NPT(model 340D only)
Side (top)
1/4 NPT(model 340D only)
Side (bottom) 1/4 NPT(model 340D only)
Side (dual) 1/4 NPT(model 340D only)
• 316SS
• 316SS
• 316SS
• 316SS
• 316SS
• 316SS
• 316SS
• Hastelloy
C-276 End
1/2 NPT
• Hastelloy
C-276 Side (top)
1/2 NPT(model 340D only)
• Hastelloy
C-276 Side (bottom) 1/2 NPT(model 340D only)
• Hasttelloy
C-276 Side (dual) 1/2 NPT(model 340D only)
• Hastelloy
C-276 End
1/4/ NPT(model 340D only)
• Hastelloy
C-276 Side (top)
1/4 NPT(model 340D only)
• Hastelloy
C-276 Side (bottom) 1/4 NPT(model 340D only)
• Hastelloy
C-276 Side (dual) 1/4 NPT(model 340D only)
Fill Fluid
• Silicone DC200 (Standard on All Ranges)
• Inert
• Paratherm
Output Indicator
• Not Required
Standard Options
• Oxygen Cleaned
• Bolting (model 340D only)
• Bolting (model 340D only)
• Not Required
Mounting Bracket
• Not Required
Housing
• Not Required
Hazardous Area Classifications
• Non-Approved
AA
AB
AC
AD
AE
AF
AG
AH
BA
BB
BC
BD
BE
BF
BG
BH
B
C
D
N
X
D
E
N
N
N
N
1) “x.xx” specifies the software’s version number. This will be defined by Siemens as the latest version number.
2.21
Controllers
FIELDPAC™ 348 Field-Mounted Controller
Dimensional drawings
Dimensions
2
Panel Cutout: 11.5± 0.1 (292±2.5) High X 10.0±0.1 (254±2.5) Wide
Panel Thickness: 3/16" (4.76) maximum
Except for panel cutout, all dimensions are nominal and for reference only.
The FIELDPAC controller with a pressure sensor must mount on a panel or pipe.
2.22