Intro to 1771IXE

Intro to 1771IXE - CIMT 474, Manufacturing Integration II...

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CIMT 474, Manufacturing Integration II 7/30/02 Intro to The 1771-IXE Thermocouple Input Module 1 CIMT 474 Manufacturing Integration II Introduction to The 1771-IXE Thermocouple Input Module T.E. Kostek Fall 2007 Topics • Part 1 – Module Overview •P a r t 2 – Wiring Thermocouple Inputs • Part 3 – Setting Configuration Plugs • Part 4 – Programming The IXE Module 2 a r t 5 – Configuring The IXE Module • Part 6 – Reading Data From The IXE Module
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CIMT 474, Manufacturing Integration II 7/30/02 Intro to The 1771-IXE Thermocouple Input Module 2 Part 1 Module Overview Module Overview • The 1771-IXE Thermocouple/Millivolt Input Module: – Is an intelligent I/O module which uses block transfer instructions to communicate with the PLC-5 processor module – Requires no external power supply – Provides temperature data in °Cor °F 4 Provides temperature data in C or F – Temperature resolution = 1°C or 1°F – Thermocouples supported: E, J, K, T, R, and S
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CIMT 474, Manufacturing Integration II 7/30/02 Intro to The 1771-IXE Thermocouple Input Module 3 Module Overview • The 1771-IXE Thermocouple/Millivolt Input Module: – Supports up to 8 thermocouple inputs: •Se r ie s A 1771-IXE modules: All 8 thermocouple inputs must be of the same type. r s B 1771-IXE modules: Two types of thermocouples are supported (channels 1 – 4 must all be the same type and channels 5 8 can be a different type 5 channels 5 – 8 can be a different type) – For example, type K thermocouples could be wired to channels 1 – 4 and type J thermocouples could be wired to channels 5 – 8. Module Overview • The 1771-IXE Thermocouple/Millivolt Input Module: Supports up to 8 millivolt inputs – Supports up to 8 millivolt inputs: • Can be used with transducers that output a low level voltage • Range = ±100 mv (millivolt) 6 • Resolution = 10 μv (microvolt)
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CIMT 474, Manufacturing Integration II 7/30/02 Intro to The 1771-IXE Thermocouple Input Module 4 Module Overview • The 1771-IXE Thermocouple/Millivolt Input Module: Has buil in high and low temperature alarm – Has built-in high and low temperature alarms – Has no DIP Switches! – Automatic open circuit detection for thermocouple it 7 inputs Module Overview • Before the IXE module can be used to read thermocouple (or millivolt) data, it must be config red configured. • The 1771-IFE module is configured using: Hardware • NONE – there are no “Configuration plugs” 8 Software • Block transfer write (BTW) instruction
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CIMT 474, Manufacturing Integration II 7/30/02 Intro to The 1771-IXE Thermocouple Input Module 5 ( 1 ) A BTW is used to configure ( 3 ) An ADC converts analog inputs into digital code which is stored in the 1771-IXEs RAM ( 5 ) Check for errors (block transfer read errors, overrange, underrange etc ) the module ( 2 ) TC generates mv signal underrange, etc.) ( 6 ) Buffer valid data ( 4 ) A BTR copies data into the processors data table Processor IXE Module (optional) via FAL instruction Use low/high alarm bits in user program (optional) Use the valid temperature data in the program Module Overview
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Intro to 1771IXE - CIMT 474, Manufacturing Integration II...

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