Siemens SITRANS RD200 User manual

SITRANS RD200
SITRANS
Communication and Displays
SITRANS RD200
Operating Instructions
05/2019
A5E47629414
-AA
SITRANS RD200
1
Specifications
2
Dimension drawings
3
Installing/mounting
4
Connection
5
Setup
6
Operating
7
Factory defaults
A
Troubleshooting tips
B
Quick user interface
reference guide
C
Serial communication
protocol
D
Modbus register tables
E
Technical support
F

Siemens AG
Division Process Industries and Drives
Postfach 48 48
9
0026 NÜRNBERG
GERMANY
Document order number: A5E47629414
Ⓟ
07/2019 Subject to change
Copyright © Siemens AG 2019.
All rights reserved
Legal information
Warning notice system
This manual contains notices you have to observe in order to ensure your personal safety, as well as to prevent
damage to property. The notices referring to your personal safety are highlighted in the manual by a safety alert
symbol, notices referring only to property damage have no safety alert symbol. These notices shown below are
graded according to the degree of danger.
DANGER
indicates that death or severe personal injury will result if proper precautions are not taken.
WARNING
indicates that death or severe personal injury may result if proper precautions are not taken.
CAUTION
indicates that minor personal injury can result if proper precautions are not taken.
NOTICE
indicates that property damage can result if proper precautions are not taken.
If more than one degree of danger is present, the warning notice representing the highest degree of danger will
be used. A notice warning of injury to persons with a safety alert symbol may also include a warning relating to
property damage.
Qualified Personnel
The product/system described in this documentation may be operated only by personnel qualified for the specific
task in accordance with the relevant documentation, in particular its warning notices and safety instructions.
Qualified personnel are those who, based on their training and experience, are capable of identifying risks and
avoiding potential hazards when working with these products/systems.
Proper use of Siemens products
Note the following:
WARNING
Siemens products may only be used for the applications described in the catalog and in the relevant technical
documentation. If products and components from other manufacturers are used, these must be recommended
or approved by Siemens. Proper transport, storage, installation, assembly, commissioning, operation and
maintenance are required to ensure that the products operate safely and without any problems. The permissible
ambient conditions must be complied with. The information in the relevant documentation must be observed.
Trademarks
All names identified by ® are registered trademarks of Siemens AG. The remaining trademarks in this publication
may be trademarks whose use by third parties for their own purposes could violate the rights of the owner.
Disclaimer of Liability
We have reviewed the contents of this publication to ensure consistency with the hardware and software
described. Since variance cannot be precluded entirely, we cannot guarantee full consistency. However, the
information in this publication is reviewed regularly and any necessary corrections are included in subsequent
editions.

SITRANS RD200
Operating Instructions, 05/2019, A5E47629414-AA 3
Table of contents
1 SITRANS RD200....................................................................................................................................... 5
1.1 Introduction ...............................................................................................................................5
2 Specifications ............................................................................................................................................ 6
2.1 Power........................................................................................................................................6
2.2 Mounting ...................................................................................................................................6
2.3 Memory .....................................................................................................................................6
2.4 Programming ............................................................................................................................7
2.5 Display ......................................................................................................................................7
2.6 Outputs .....................................................................................................................................7
2.7 Serial Communications.............................................................................................................8
2.8 Inputs ........................................................................................................................................8
2.9 Enclosure ..................................................................................................................................9
2.10 Weight.......................................................................................................................................9
2.11 Approvals ..................................................................................................................................9
3 Dimension drawings ................................................................................................................................ 10
4 Installing/mounting................................................................................................................................... 12
5 Connection .............................................................................................................................................. 14
5.1 Connector Labeling.................................................................................................................14
5.2 Power Connections.................................................................................................................15
5.3 Signal Connections.................................................................................................................15
5.4 Current and Voltage Connections...........................................................................................15
5.5 Thermocouple and RTD connections .....................................................................................17
5.6 Serial Communication.............................................................................................................20
6 Setup ....................................................................................................................................................... 22
6.1 Main menu ..............................................................................................................................24
6.2 Setting numeric values ...........................................................................................................25
6.3 Setting decimal point...............................................................................................................26
6.4 Relay and Alarm Operation ....................................................................................................31
6.4.1 Time delay operation ..............................................................................................................33
6.5 Scaling ....................................................................................................................................37
6.6 Security ...................................................................................................................................42
6.6.1 Unlocking the meter (unLC)....................................................................................................42

Table of contents
SITRANS RD200
4Operating Instructions, 05/2019, A5E47629414-AA
6.7 Advanced Features................................................................................................................ 43
6.7.1 Offset adjustment................................................................................................................... 45
6.7.2 Noise filter bypass (bYPS)..................................................................................................... 46
6.7.3 Serial communications (SErL) ............................................................................................... 46
6.7.4 SITRANS RD Software .......................................................................................................... 49
6.7.5 Meter copy function................................................................................................................ 49
6.7.6 Meter cloning instructions ...................................................................................................... 50
6.7.7 Troubleshooting ..................................................................................................................... 53
6.7.8 Determining software version ................................................................................................ 54
7 Operating................................................................................................................................................. 55
7.1 Front Panel Buttons Operation .............................................................................................. 55
7.2 Maximum/Minimum readings................................................................................................. 55
A Factory defaults ....................................................................................................................................... 56
A.1 Factory defaults and user settings......................................................................................... 56
B Troubleshooting tips ................................................................................................................................ 58
C Quick user interface reference guide ....................................................................................................... 59
D Serial communication protocol................................................................................................................. 62
D.1 Table of Commands............................................................................................................... 62
D.2 Command Packet Format...................................................................................................... 63
D.3 Reply Packet Format ............................................................................................................. 64
D.4 Read only Commands ........................................................................................................... 65
D.5 No-Data Commands .............................................................................................................. 67
D.6 Read/Write Commands.......................................................................................................... 68
E Modbus register tables ............................................................................................................................ 81
E.1 Register Overview.................................................................................................................. 81
E.2 Register Notes ....................................................................................................................... 90
E.3 Decimal Point......................................................................................................................... 92
E.4 Relay Configuration ............................................................................................................... 92
E.5 4-20 mA Output Mode............................................................................................................ 92
E.6 Available Register Table........................................................................................................ 93
F Technical support .................................................................................................................................... 94
F.1 Technical support................................................................................................................... 94

SITRANS RD200
Operating Instructions, 05/2019, A5E47629414-AA 5
SITRANS RD200
1
1.1 Introduction
SITRANS RD200 is a universal input, panel mount remote digital display for process
instrumentation.
It accepts a single input of current, voltage, thermocouple, or RTD signals, and the four front
panel buttons make the setup and programming an easy task.
The isolated 24 V DC transmitter power (optional) can be used to power the input
transmitter, the 4 to 20 mA output, or other devices.
Two relays (optional) can be used for alarm indication or process control applications, such
as alternating pump control.
4-20 mA isolated output and Modbus®RTU serial communication options make SITRANS
RD200 an excellent addition to any system.
The Manual
This manual provides instructions for the SITRANS RD200 remote display. The manual is
designed to help you get the most out of your Remote Display, and it provides information on
the following:
●Product specifications
●Outline diagrams
●Installation requirements
●Wiring diagrams
●How to program the unit
●Principles of operation
●Troubleshooting tips
●Factory defaults
●Quick user reference

SITRANS RD200
6Operating Instructions, 05/2019, A5E47629414-AA
Specifications
2
2.1 Power
Input voltage option 1
•85 to 265 V AC, 50/60 Hz; 90 to 265 V DC, 20 W max.
•UL Recognized, 5 A max, slow blow
•May share one 5 A fuse among up to 6 meters
Input voltage option 2
•12 to 36 V DC, 12 to 24 V AC, 6 W max.
•UL Recognized, 5 A max, slow blow
•May share one 5 A fuse among up to 6 meters
Transmitter power
supply
One or two isolated trans-
mitter power supplies (op-
tional)
Single power supply:
one 24 V DC ± 10% @ 200 mA maximum
Dual power supplies: one 24 V DC ± 10% @ 200 mA maximum
one 24 V DC ± 10% @ 40 mA maximum
External loop power
supply
35 V DC maximum
Input impedance
•Voltage ranges: greater than 1 MΩ
•Current ranges: 50 - 100 Ω (depending on resettable fuse impedance)
Output loop resistance
•24 V DC 10 to 700 Ω maximum
•35 V DC (external) 100 to 1200 Ω maximum
2.2 Mounting
Location
•Indoor/outdoor
•Panel mount 1/8 DIN
•Two panel mounting bracket assemblies provided
Ambient temperature
•Operating temperature range: -40 to +65 °C (-40 to +149 °F)
•Storage temperature range: -40 to +85 °C (-40 to +185 °F)
Relative humidity
Relative humidity: 0 to 90% non-condensing
Installation category
II
2.3 Memory
●Non-volatile
●Stores settings for minimum of ten years if power is lost

Specifications
2.4 Programming
SITRANS RD200
Operating Instructions, 05/2019, A5E47629414-AA 7
2.4 Programming
Primary
Front panel
Secondary
•Meter Copy
•PC with SITRANS RD Software
2.5 Display
Display
•14 mm (0.56") high, red LED
•Four digits (-1999 to 9999), automatic lead zero blanking
•Eight intensity levels
•2x option: 30.5 mm (1.20") high, red LED
Update Rate
•Process/RTD: 3.7 to 5/second
•Thermocouple: 1.8 to 2.5/second
Overrange
Display flashes 9999
Underrange
Display flashes -1999
2.6 Outputs
mA Analog
•4 to 20 mA
•Isolated (optional)
Relays
1) •2 SPDT Form C relays, 3A (optional)
•Auto initializing
•All relays rated 3A @ 30 V DC or 3A @ 250 V AC, non-inductive
Control Relays
•Pump alternation
•On and off time delay
•Fail-safe or non fail-safe
•Front panel ACK or PC
Alarm Relay
•High or low alarm
•0 to 100% deadband, user selectable
•Auto and manual reset via front panel or PC
•Latch or non-latch
Accuracy
•±0.1% FS ±0.004 mA
1) All relays are certified only for use with equipment that fails in a state or under the rated
maximums of the relays.

Specifications
2.7 Serial Communications
SITRANS RD200
8Operating Instructions, 05/2019, A5E47629414-AA
2.7 Serial Communications
Note
The RD200 does not support 8N1. It will be fixed to 8N2 when parity setting "None" is
selected.
Connections
•PDC standard
•RS-232 or RS-422/485 running Modbus® RTU and ASCII via RJ-11 connector
Setup
Meter address •PDC protocol: 0 to 99
•Modbus protocol: 1 to 247
Baud rate •300 to 19200 bps
Transmit time delay Programmable between 0 and 199 ms or transmitter al-
ways on for RS-422 communication
Data
8 bit (1 start bit, 1 stop bit)
Parity None, even, odd (Modbus only; PDC protocol does not
use parity)
Byte-to-Byte timeout
0.01 to 2.54 sec (Modbus only)
Turn around delay
Less than 2 ms (fixed)
Software
SITRANS RD Software
Refer to Serial communication protocol (Page 62) and Modbus register tables (Page 81) for
details.
2.8 Inputs
Process (field selectable)
•±20 mA DC (4 to 20 mA, 0 to 20 mA)
•±10 V DC (1 to 5 V, 0 to 5 V, 0 to 10 V)
Temperature (field selectable)
•Thermocouple temperature:Type J, K, E, T, Type T using 0.1° display resolu-
tion
•RTD temperature:100 Ω RTD
Accuracy
Process •±0.05% of span ±1 count, square root: 10 to 100% FS
Thermocouple tem-
perature
•Type J: ±1 °C in range -50 to +750 °C (±2 °F in range -58 to +1382 °F)
•Type K: ±1 °C in range -50 to +1260 °C (±2 °F in range -58 to +2300 °F)
•Type E: ±1 °C in range -50 to +870 °C (±2 °F in range -58 to +1578 °F)
•Type T: ±1 °C in range -180 to +371 °C (±2 °F in range -292 to +700 °F)
•Type T, 0.1 °Res: ±1 °C in range -180.0 to +371 °C (±1.8 °F in range -199.9
to+700 °F)
RTD temperature
100 Ω RTD: ±1 °C in range -200 to +750 °C (±1 °F in range -328 to +1382 °F)

Specifications
2.9 Enclosure
SITRANS RD200
Operating Instructions, 05/2019, A5E47629414-AA 9
2.9 Enclosure
●High impact plastic, UL 94V-0
●Color: gray
●Degree of protection: front panel Type 4X, NEMA 4X, IP65; panel gasket provided
●62 mm x 119 mm x 106 mm (2.45" x 4.68" x 4.19") (H x W x D)
●Optional thermoplastic, stainless steel, steel, for 1-6 meters (all with UL Listing and CSA
Certification)
●Optional polycarbonate for 1 meter [available with optional zinc plated or stainless steel
2" (5.08 cm) mounting kits]
2.10 Weight
●269 g (9.5 oz) (including options)
2.11 Approvals
●CE
●UL
●CUL
Note
Testing was conducted on SITRANS RD200 meters installed through the covers of grounded
metal enclosures with cable shields grounded at the point of entry representing installations
designed to optimize EMC performance.

SITRANS RD200
10 Operating Instructions, 05/2019, A5E47629414-AA
Dimension drawings
3
RD200 Meter Dimensions - Side View
①
Screw terminal connector [0.5 Nm (4.5 lb/in) tightening torque]

Dimension drawings
SITRANS RD200
Operating Instructions, 05/2019, A5E47629414-AA 11
RD200 Case Dimensions - Top View

SITRANS RD200
12 Operating Instructions, 05/2019, A5E47629414-AA
Installing/mounting
4
WARNING
Electrical shock
Risk of electrical shock.
WARNING
Hazardous voltages
Hazardous voltages exist within enclosure. Installation and service should be performed
only by trained service personnel.
Note
•
Read complete instructions prior to installation and operation of the meter.
•
There is no need to remove the meter from its case to complete the installation, wiring,
and setup of the meter.
•
Installation must only be performed by qualified personnel, and in accordance with local
governing regulations.
Unpacking
Remove the meter from box. Inspect the packaging and contents for damage. Report
damages, if any, to the carrier.
If any part is missing or the meter malfunctions, please contact your local Siemens
representative for assistance.
Panel Mounting Instructions
1. Prepare a standard 1/8 DIN panel cutout – 92 mm x 45 mm (3.622 " x 1.772 ").
–Clearance: allow at least 102 mm (4") behind the panel for wiring
–Panel thickness: 1.0 mm to 6.4 mm (0.04" to 0.25")
–Recommended minimum panel thickness to maintain Type 4X rating: 1.5 mm (0.06 ")
steel panel, 4.1 mm (0.16 ") plastic panel.
Refer to Troubleshooting tips (Page 58) for more details.
2. Remove the two mounting brackets provided with the meter. Back off the two screws so
that there is 6.4 mm (¼ ") or less through the bracket. Slide the bracket toward the front
of the case and remove.
3. Insert meter into the panel cutout.
4. Install mounting brackets and tighten the screws against the panel. To achieve a proper
seal, tighten the mounting bracket screws evenly until meter is snug to the panel along its
short side. DO NOT OVER TIGHTEN, as the rear of the panel may be damaged.

Installing/mounting
SITRANS RD200
Operating Instructions, 05/2019, A5E47629414-AA 13
Panel Cutout and Mounting
①
Square corners to 1.5 mm (0.060") max. radius
②
Gasket
③
Panel
④
Removable connectors
⑤
Mounting screw
⑥
Mounting bracket
⑦
Panel cutout to DIN 43700
A= 92 mm (3.622") + 0.8 mm (+0.032")
- 0.0 mm (+0.000")
B= 45 mm (1.772") + 0.6 mm (+0.024")
- 0.0 mm (+0.000")

SITRANS RD200
14 Operating Instructions, 05/2019, A5E47629414-AA
Connection
5
WARNING
Wiring requirements
•Use copper wire with +60 °C or +60/75 °C (+140 °F or +140/167 °F) insulation for all line
voltage connections.
•Observe all safety regulations.
•Electrical wiring should be performed in accordance with all applicable national, state,
and local codes to prevent damage to the meter and ensure personnel safety.
Note
•
Verify that all system components are installed in accordance with instructions.
•
All connections are made to removable screw terminal connectors located at the rear of
the meter.
5.1 Connector Labeling
The connectors label, affixed to the meter, shows the location of all connectors available with
requested configuration. It also identifies the location of the RTD/TC selector switch.
Connector Labeling for Two Relays and 24 V Supply

Connection
5.2 Power Connections
SITRANS RD200
Operating Instructions, 05/2019, A5E47629414-AA 15
5.2 Power Connections
Power connections are made to a two-terminal connector labeled POWER on diagram
Connector Labeling for Two Relays and 24 V Supply. The meter will operate regardless of
DC polarity connection. The + and - symbols are only a suggested wiring convention.
①
Power connector
②
AC or DC power
③
Required external fuse 5 A max. slow blow
5.3 Signal Connections
Signal connections are made to a five-terminal connector labeled SIGNAL on diagram
Connector Labeling for Two Relays and 24 V Supply. The COM (common) terminal is the
return for all types of input signals.
5.4 Current and Voltage Connections
The following figures show examples for current and voltage connections.
There are no switches or jumpers to set up for current and voltage inputs. Setup and
programming is performed through the front panel buttons.

Connection
5.4 Current and Voltage Connections
SITRANS RD200
16 Operating Instructions, 05/2019, A5E47629414-AA
Transmitter powered by ext. supply or self-powered
①
Signal Connector
②
2-wire 4 to 20 mA transmitter
③
External power supply
④
2-wire 4 to 20 mA self-powered transmitter
Transmitter powered by internal supply (optional)
①
Signal connector
②
24 V out
③
Signal
④
3-wire 4 to 20 mA transmitter
⑤
2-wire 4 to 20 mA transmitter
The current input is protected against current overload by a fuse capable of being reset. The
display may or may not show a fault condition depending on the nature of the overload.
The fuse limits the current to a safe level when it detects a fault condition, and automatically
resets itself when the fault condition is removed.

Connection
5.5 Thermocouple and RTD connections
SITRANS RD200
Operating Instructions, 05/2019, A5E47629414-AA 17
Voltage input connections
①
Signal connector
②
24 V out
③
Signal
④
3-wire voltage transducer
⑤
Voltage signal
The meter is capable of accepting any voltage from -10 V DC to +10 V DC.
5.5 Thermocouple and RTD connections
The following figures show examples for thermocouple and RTD connections.
The RTD/TC selector switch must be set to the proper position for the meter to accept the
selected temperature input.
The input type is selected using the Setup (
SEtu ) menu.
Selected thermocouple input must correspond to thermocouple sensor and wire type used.

Connection
5.5 Thermocouple and RTD connections
SITRANS RD200
18 Operating Instructions, 05/2019, A5E47629414-AA
Thermocouple input connections
①
Signal Connector
②
Switch position
Three-wire RTD input connections
①
Signal connector
②
Switch position
③
RTD sensor
The meter accepts two, three, or four-wire RTDs. The three-wire RTD connection has built-in
lead wire compensation.

Connection
5.5 Thermocouple and RTD connections
SITRANS RD200
Operating Instructions, 05/2019, A5E47629414-AA 19
Two-wire RTD input connections
①
Signal connector
②
Switch position
③
RTD sensor
Lead wire compensation for two-wire RTDs can be applied using the Adjust ( Adj ) menu. See
Offset adjustment (Page 45).
Four-wire RTD input connections
①
Signal connector
②
Switch position
③
NC
④
RTD sensor
The four-wire RTD connection is similar to the three-wire. One of the leads of a four-wire
RTD is not connected, and may be clipped off.
The three-wire connection provides sufficient lead wire compensation to provide accurate
readings even with long leads.

Connection
5.6 Serial Communication
SITRANS RD200
20 Operating Instructions, 05/2019, A5E47629414-AA
5.6 Serial Communication
Serial communication connection is made to an RJ11 connector labeled SERIAL on
Connector Labeling (Page 14).
Device to use
For interfacing
RS232 serial adapter
RS232
RS422/485 serial adapter
RS422/485
SITRANS RD200 meter copy cable Meter-to-meter (for cloning purposes - copying pro-
grammed settings from one meter to other meters)
Relays and 24 V Output Connections
Relay connections are made to a six-terminal connector labeled RELAY1, RELAY2 on
Connector Labeling (Page 14). The COM (common) terminals of the relays should not be
confused with the COM (common) terminal of the SIGNAL connector. The 24 V DC output is
available at the connector labeled 24V OUT, next to the relay connector.
Connections for the 4 to 20 mA transmitter output are made to the connector terminals
labeled mA OUT, I-, I+. The 4 to 20 mA output may be powered from an internal power
supply (optional) or from an external power supply.
4 to 20 mA Output and Input Signal Powered by Meter
①
Signal connector
②
mA out
③
24 V out
④
Remote display chart recorder
⑤
2-wire 4 to mA transmitter