IVC1-2PT RTD Module User Manual 1 Port Description 2 Indices
Contents
1. Through the extension cable you can connect IVC1 2PT to IVC1 series basic module or other extension modules While through the extension port you can connect other IVC1 series extension modules to EC20 2PT See Figure 1 3 Removing extension port cover before connection googoooooooooooo oooooooooooooooo 0000000000000000 pogo029092000229 Basic module Extension module Extension cable Figure 1 3 Connecting into system 1 3 Wiring Figure 1 4 shows the wiring of the user port Unused channel 2 wire connection 4 w ireconnection 3 wire connection 3 wire connection IVC1 2PT Figure 1 4 Wiring of VC1 2PT user port The circled 1 5 stands for the five points to be observed during wiring 1 Use shielded cables to input the thermal resistor signal Route them separate from power cable or any cable that may generate EMI The requirements on the thermal resistor signal input cable also include 1 The thermal resistance sensor Pt100 Cu100 or Cu50 can use 2 3 or 4 wire system the ascending measurement precisions When the cable is longer than 10m the 4 wire system is recommended 22. To reduce the measurement error and avoid EMI the cable should be shorter than 100 meters The measurement error is due to the connecting cable s impedance and the error may differ with different channels even within the same module Consequently we need to adjust the characteristics of each channel See 3 Setting Characteristics for details 2 If strong EMI exists connect the shielding ground FG to the PG terminal 3 Properly ground module PG terminal 4 The basic module s 24Vdc auxiliary output power or other qualified power supplies can be used as the power source for the analog circuit 5 Short the unused channel as shown in the figure 2 Indices 2 1 Power Supply Table 2 1 Power supply Specification Analog circuit 24V de 15 20 maximum allowable ripple voltage 5 55mA from basic module or external power supply Digital circuit 5Vdc 72mA from basic module 2 2 Performance Table 2 2 Performance Specification Celcius C Fahrenheit F Thermal resistance type Pt100 Cu100 and Cu50 Channel No 4 15 2 ms x 2 channels no conversion for unused channels Pt100 150 C 600 C Pt100 238 F 1112 F Cu100 30 C 120 C Cu100 22 F 248 F 30 C 120 C EF 246 F 12 bit A D conversion The temperature readings are stored as Cu100 300 1200 Cu100 220 2480 Pt100 0 2 C Pt100 0 36 F Cu100 0 2 C Cu100 0 36 F 036 Precision 1 of full range Between a
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6. IVC1 2PT RTD Module User Manual Note To reduce the chance of accident please carefully read the operating instructions and safety precautions prior to use Only adequately trained personnel shall install or operate this product In operation strict compliance with applicable safety rules in the industry the operating instructions and safety precautions in this book is required 1 Port Description 1 1 Port The extension port and user port of IVC1 2PT are both protected by a cover as shown in Figure 1 1 Extension port cover IVC1 2PT User port cover Extension cable Figure 1 1 IVC1 2PT appearance Removing the covers reveals the extension port and user port as shown in Figure 1 2 Extension port kr r 5 Sr 5 T TT SRE CEA Seas Ea as ieee ee ee a Extension cable Figure 1 2 IVC1 2PT ports The extension cable connects IVC1 2PT to the system while the extension port connects IVC1 2PT to another extension module of the system For details on connection see 1 2 Connecting Into System The user port of IVC1 2PT is described in Table 1 1 Table 1 1 User port description Name Description 24V Analog power supply 24V 2v Analog power supply 24VF 59 11 12 das positive thermal resistor signal input of CH1 2 R1 R2 Negative thermal resistor signal input of CH1 CH2 2 Auxiliary negative thermal resistor signal input of CH1 8 12 I1 12 CH pes 1 2 Connecting Into System
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8. ed F Reserved Figure 2 1 Mode setting element vs channel See Table 2 6 for the meaning of X Each channel s conversion time is 15ms When a channel is closed the channel will not perform A D conversion reducing the total conversion time Table 2 6 Meanings of X in the format Corresponding mode i O Pro thermal resistance digtal signal unit 0 C 2 Cf Pet 00 thermal resistance diotal signal uni 0 F _ 2 600 thera resistance dig signal unit 0 T C EE oT S 4 Cu50 thermal resistance digital signal unit 0 1 Cu50 thermal resistance digital signal unit 0 1 F Channels closed 7 BFM 700 BFM 701 average sampling times setting Range 1 256 If the setting is outside this range the default value 8 will be used 8 BFM 900 BFM 907 channel characteristics settings which are set using two point method DO and D1 in 0 1 C unit represent the channel s digital outputs while AO and A1 also in 0 1 C unit the actual temperature inputs Each channel occupies 4 words Note the characteristic parameters are all in 0 1 C unit As for those parameters in Fahrenheit unit convert them into Celsius unit through the following format before writing them into the characteristic setting Celsius 5 9 x Fahrenheit 32 11 BFM 4094 module software version displayed automatically as Module Version in IVC1 2PT Configuration dialogue box of the host software as shown in Figure 4 1 12 BFM 4095 mod
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10. nalog circuit and digital circuit photocoupler Between analog circuit and input 24Vdc power internal isolation Between analog channels none Item Input signal Conversion Rated temperature range Digital output Lowest resolution Isolation 2 3 Buffer Memory IVC1 2PT exchanges data with the basic module through Buffer Memory BFM After IVC1 2PT is set through the host software the basic module will write data into IVC1 2PT BFM to set the state of IVC1 2PT and display the data from IVC1 2PT on the host software interface See figures 4 1 4 4 Table 2 3 describes the contents of BFM of IVC1 2PT Table 2 3 BFM content Content 00 Average temperature ofCHT R mor Average temperature otc R 200 Present temperature te R HOT Presenttemperare teha R o0 ErorstatewordT OR 301 Error state word 2 a R o 4600 Thermal resistance type and temperature 40000 RW mode select 0 700 Sampling times for average of CH1 8 RW 701 Sampling times for average of CH2 8 RW 800_ CHT DO w CH oo r CHAD Fw CH 902 CH1 D1 7908 wos cp CSR wos CHAD _ w 906 CH2 D1 907 CH2 A1 6000 4094 Module software version 0x1000 4095 Module ID H5021 o CR Explanation 1 CH1 stands for channel 1 CH2 channel 2 2 Property explanation R means read only An R element cannot be written RW means read and write Reading from a non existent element will ge
11. t 0 3 BFM 200 BFM 201 present temperature This value uses the unit of 0 1 C or 0 1 F as determined by BFM 600 For example 1000 means 100 C or 100 F as determined by BFM 600 The average temperature is stored in BFM 100 BFM 101 4 BFM 300 Error state word 1 See Table 2 4 for its error state information 6000 Table 2 4 BFM 300 error state information Bit status of N 1 b1 or b2 is 1 A D convertion of all b0 system error Normal channels stopped b1 channel Channel characteristic characteristics setting error setting normal Channel characteristics setting error in BFM b2 P I PARE RRR 24Vdc power failure ig failure normal hardware paberesened p L b10 digital range A D conversion digital output exceeds Digital output b11 average Setting outside normal range in this Setting within sampling times case the previous valid setting will be normal range setting error restored 1 256 S F j 5 See Table 2 5 for the state information of BFM 301 Table 2 5 BFM8 301 state information roam bo CH1 temperature below lower limit CH1 normal CH1 temperature above upper limit CH1 normal 2 CH2 temperature below lower limit CH2 normal CH2 temperature above upper limit CH2 normal S 6 BFM 600 channel mode setting used to set the working modes of CH1 CH2 See Figure 2 1 for their correspondence 600 ox a lt L Working mode for CH1 Working mode for CH2 Reserv
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