Fieldbus Independent I/O Modules Analog Input Modules for RTD's 750-461, (/xxx-xxx) Manual Version 1.1.
ii • General Copyright © 2006 by WAGO Kontakttechnik GmbH & Co. KG All rights reserved. WAGO Kontakttechnik GmbH & Co. KG Hansastraße 27 D-32423 Minden Phone: +49 (0) 571/8 87 – 0 Fax: +49 (0) 571/8 87 – 1 69 E-Mail: info@wago.com Web: http://www.wago.com Technical Support Phone: +49 (0) 571/8 87 – 5 55 Fax: +49 (0) 571/8 87 – 85 55 E-Mail: support@wago.com Every conceivable measure has been taken to ensure the correctness and completeness of this documentation.
Content • iii Content 1 Important Comments ................................................................................. 4 1.1 Legal Principles........................................................................................ 4 1.1.1 Copyright ............................................................................................. 4 1.1.2 Personnel Qualification ....................................................................... 4 1.1.3 Intended Use .....................................
• Important Comments Legal Principles 1 Important Comments To ensure fast installation and start-up of the units described in this manual, we strongly recommend that the following information and explanations are carefully read and abided by. 1.1 Legal Principles 1.1.1 Copyright This manual is copyrighted, together with all figures and illustrations contained therein. Any use of this manual which infringes the copyright provisions stipulated herein, is not permitted.
Symbols Intended Use • 5 1.2 Symbols Danger Always abide by this information to protect persons from injury. Warning Always abide by this information to prevent damage to the device. Attention Marginal conditions must always be observed to ensure smooth operation. ESD (Electrostatic Discharge) Warning of damage to the components by electrostatic discharge. Observe the precautionary measure for handling components at risk. Note Routines or advice for efficient use of the device and software optimization.
• Important Comments Safety Notes 1.4 Safety Notes Warning Switch off the system prior to working on bus modules! In the event of deformed contacts, the module in question is to be replaced, as its functionality can no longer be ensured on a long-term basis. The components are not resistant against materials having seeping and insulating properties. Belonging to this group of materials is: e.g. aerosols, silicones, triglycerides (found in some hand creams).
Analog Input Modules Overview Analog Input Modules for RTD's 750-461, (/xxx-xxx) 2 I/O Modules 2.1 Analog Input Modules 2.1.1 Overview Analog Input Modules for RTD's 750-461, (/xxx-xxx) I/O Module 750-461/ 000-002 750-461 750-461/ 000-003 750-461/ 000-004 750-461/ 000-005 Function PT100/ RTD Resistance Measuring 10R-1k2 PT1000/ RTD Ni 100/ RTD Ni 1000/ RTD Channels 2 2 2 2 2 Measuring range -200 °C ... +850 °C 10 Ω ... 1,2 kΩ -200 °C ... -60 °C ... +850 °C +250 °C -60 °C ...
• 750-461, (/xxx-xxx) [2 AI Pt100/ RTD] View 2.1.2 750-461, (/xxx-xxx) [2 AI Pt100/ RTD] 2-Channel Analog Input Module for RTDs 2- or 3-wire connection 2.1.2.1 View 13 14 Function AI 1 Error AI 1 A C B D +R1 +R2 +R 1 Function AI 2 Error AI 2 Data contacts 2-conductor 3-conductor +R 2 RL1 RL2 RL 2 RL 1 -R1 -R2 -R 2 -R 1 S S Shield (screen) Shield (screen) 750-461 Fig. 2.1.2-1: 2-Channel Analog Input Module 750-461 g046100e 2.1.2.2 Variations Item-No.
750-461, (/xxx-xxx) [2 AI Pt100/ RTD] Description Item-No. Designation • 9 Description Resistance measuring 750-461/000-002 2 AI Resistance Measuring, 10R-1k2 2-Channel Analog Input Module, Resistance measuring, Measuring range: 10 Ω ... 1,2 kΩ 750-461/000-007 2 AI Resistance Measuring, 10R-5k0 2-Channel Analog Input Module, Resistance measuring, Measuring range: 10 Ω ...
• 750-461, (/xxx-xxx) [2 AI Pt100/ RTD] Display Elements After the error has been corrected, the module needs up to 4 seconds to output a correct measured value, the module 750-461/000-006 needs up to 12 seconds. Any configuration of the input modules is possible when designing the fieldbus node. Grouping of module types is not necessary. Attention This module has no power contacts. For field supply to downstream I/O modules, a supply module will be needed.
750-461, (/xxx-xxx) [2 AI Pt100/ RTD] • 11 Schematic Diagram 2.1.2.5 Schematic Diagram 1 5 +R1 +R2 +R 270pF 2 MUX A Logic D 6 RL1 RL2 RL 270pF Error Function 3 7 -R1 -R2 -R 10nF Shield (screen) 4 8 Shield (screen) 750-461 Fig. 2.1.
• 750-461, (/xxx-xxx) [2 AI Pt100/ RTD] Technical Data 2.1.2.6 Technical Data Module Specific Data Number of inputs 2 Voltage supply via system voltage DC /DC Current consumption max. (internal) 80 mA Sensor types (the free configurable variation supports all listed sensor types) Pt 100 (factory preset), optionally orderable variants for Pt 200, Pt 500, Pt 1000, Ni 100, Ni 120, Ni 1000, resistance measuring. Sensor connection 3-wire (factory preset) or 2-wire Temperature range -200 °C ...
750-461, (/xxx-xxx) [2 AI Pt100/ RTD] • 13 Process Image Approvals (cf. Chapter 2.2 of the Coupler/Controller Manual) CULUS (UL508) ABS (American Bureau of Shipping) BV (Bureau Veritas) DNV (Det Norske Veritas) Cl. B GL (Germanischer Lloyd) Cat. A, B, C, D KR (Korean Register of Shipping) LR (Lloyd's Register) Env.
• 750-461, (/xxx-xxx) [2 AI Pt100/ RTD] Process Image Attention The representation of the process data of some I/O modules or their variations in the process image depends on the fieldbus coupler/-controller used. Please take this information as well as the particular design of the respective control/status bytes from the section "Fieldbus Specific Design of the Process Data" included in the description concerning the process image of the corresponding coupler/controller. 2.1.2.7.
750-461, (/xxx-xxx) [2 AI Pt100/ RTD] • 15 Process Image 2.1.2.7.1.1 Pt 100 The analog input modules 750-461 and 750-461/000-006 transmit 16-bit measured values per channel as well as 8 optional status bits to the coupler/controller. However, accessing the status byte depends on the fieldbus system being used. 750-461, /000-006 (Pt 100) Temperature °C Resistance Ω <-200.0 10.00 -200.0 18.49 -100.0 60.25 0.0 100.00 100.0 138.50 200.0 175.84 500.0 280.90 750.0 360.47 800.0 375.51 850.0 390.26 >850.0 >390.
• 750-461, (/xxx-xxx) [2 AI Pt100/ RTD] Process Image 2.1.2.7.1.3 Pt 100 with Status Information for S5-FB250 in Data Word The analog input module 750-461/000-200 transmits 16-bit measured values per channel as well as 8 optional status bits to the coupler/controller. When a S5 is used as higher-level control system, this data can be directly processed using the FB 250 function block. However, accessing the status byte depends on the fieldbus system being used.
750-461, (/xxx-xxx) [2 AI Pt100/ RTD] • 17 Process Image 2.1.2.7.2 I/O Modules for Ni Resistance Sensors Ni resistance sensors (Measuring range: -60 °C ... +250 °C) 750-461/000-004 Evaluation of Ni 100 750-461/000-005 Evaluation of Ni 1000 To evaluate the nickel resistance sensors, the measured values of the resistance are converted and sent as temperature values. All temperature values are represented in a standard numeric format.
• 750-461, (/xxx-xxx) [2 AI Pt100/ RTD] Process Image 2.1.2.7.2.2 Ni 1000 In the Ni 1000 setting 750-461/000-005, the temperature values of the sensors are represented with a resolution of 1 digit per 0.1 °C within a word (16 bits). Thus, 0 °C corresponds to the numeric value 0x0000 and 100 °C to 0x03E8 (dec. 1000). Temperature values below 0 °C are represented in two’s complement binary form.
750-461, (/xxx-xxx) [2 AI Pt100/ RTD] • 19 Process Image 2.1.2.7.3 I/O Modules for Resistance Measuring Resistance measuring 750-461/000-002 Resistance measuring, Measuring range: 10 Ω ... 1.2 kΩ 750-461/000-007 Resistance measuring, Measuring range: 10 Ω ... 5.0 kΩ The measured values are sent out directly when measuring the resistance. Using the 750-461/000-002 module with measuring range from 10 Ω to 1.2 kΩ, the resolution is 1 digit per 0.1 Ω.
• 750-461, (/xxx-xxx) [2 AI Pt100/ RTD] Adjustable 750-461/003-000 Variation 2.1.2.8 Adjustable 750-461/003-000 Variation The operating mode of the 750-461/003-000 variation can be parameterized using the WAGO-I/O-CHECK 2 start-up and diagnostic tool (Item No.: 759302). The default setting is Pt 100. In this operating mode, the module has the same behavior and process values as the 750-461 basic module. The parameter dialog box of WAGO-I/O-CHECK 2 contains select boxes that are used to set this module.
750-461, (/xxx-xxx) [2 AI Pt100/ RTD] • 21 Adjustable 750-461/003-000 Variation In WAGO-I/O-CHECK 2, the following input boxes allow you to set the offset and gain values of the user and manufacturer scaling. Input box ... Offset Gain User Scaling ... 0x0000 0x0100 WAGO Scaling ... 0x0000 0x00A0 The following input boxes are available in WAGO-I/O-CHECK 2 for hardware calibration.
• 750-461/020-000 [2 AI NTC 20kOhm] View 2.1.3 750-461/020-000 [2 AI NTC 20kOhm] 2 Channel Analog Input Module for NTC 20kOhm RTDs, 2-wire connection 2.1.3.1 View 13 14 Funktion AI 1 Fehler AI 1 A C B D +R1 +R2 Funktion AI 2 Fehler AI 2 Datenkontakte 2-Leiter +R 1 +R 2 RL1 RL2 -R1 -R2 -R 1 -R 2 S S Schirm Schirm 750-461 /020-000 Fig. 2.1.
750-461/020-000 [2 AI NTC 20kOhm] • 23 Description 2.1.3.2 Description The analog input module 750-461/020-000 evaluates NTC 20kOhm resistance Temperature Devices, RTDs. The resistance value is converted to a temperature. A microprocessor within the module is used for converting and linearizing the measured resistance value into a numeric value proportional to the temperature of the selected resistance sensor. The analog input module is a 2-conductor device and has 2 input channels.
• 750-461/020-000 [2 AI NTC 20kOhm] Display Elements 2.1.3.3 Display Elements LED Chan nel A gree n 1 13 14 A B B C red D A C B D Fig. 2.1.
750-461/020-000 [2 AI NTC 20kOhm] • 25 Technical Data 2.1.3.5 Technical Data Module Specific Data Number of inputs 2 Voltage supply via system voltage DC /DC Current consumption max. (internal) 65 mA Sensor types NTC 20kOhm Sensor connection 2-wire Temperature range -30 °C ... +130 °C Resolution 0,1 °C Conversion time 320 ms (per channel) Response delaymax. 4s Measuring error (The specified accurancys apply to a supply line resistance of RL < 1 Ohm) <± 1,0 K in the range of –30 °C ...
• 750-461/020-000 [2 AI NTC 20kOhm] Process Image 2.1.3.6 Process Image Some fieldbus systems can process input channel status information by means of a status byte. This status byte can be displayed via the WAGO-I/O-CHECK 2 start-up and diagnostic tool. However, processing via the coupler / controller is optional, which means that accessing or parsing the status information depends on the fieldbus system.
750-461/020-000 [2 AI NTC 20kOhm] • 27 Process Image WAGO-I/O-SYSTEM 750 I/O Modules
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