Toshiba AD268 30

30 Analog I/O Modules (AD268 / DA264 / TC218)

6. Parameters PART 1 AD268

6.2 Parameter setting procedure

When you change the AD268 parameters, such as input type settings, gain/offset calibrations

and averaging times, use the following procedure.

Step (1)

Write the value "0" into the command register of the AD268 buffer memory (address H8020)

by WRITE instruction.

H8020 Command register ← Write 0

Step (2)

Write the para meter data into t he buffer memory ( addresses H8000 to H801F) by WRITE

instruction. Be sure to write all the 32 words in batch.

H8000 Gain for channel 1

H8001 Gain for channel 2

::

H801F Input type for channel 8

← Write the parameter data (32 words)

Step (3)

Write the value "1" into the command register (address H8020) by WRITE instruction.

H8020 Command register ← Write 1

Step (4)

Wait until the data of the response register (address H8021) comes "1". Check the data by

READ instruction.

H8021 Response register Check if it comes 1

Step (5)

Write the value "0" into the command register (address H8020) by WRITE instruction.

H8020 Command register ← Write 0

When the above steps are finished and the module status (addresses H8030 to H8037) shows

no error, the parameter setting procedure is completed. The parameters are eff ective and they

have been saved in the AD268's EEPROM.

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Contents

Main Important Information Safety Precautions Safety Symbols ! ! Safety Precautions 2 About This Manual About This Manual Related Manual Table of Contents Part 1 8 Channel Analog Input Module AD268 4 Part 2 4 Channel Analog Output Module DA264 Part 3 8 Channel Thermocouple Input Module TC218 Page Page 8 1. Introduction 1.1 AD268 Functions Page 10 2. Specifications Users Manual 11 12 3. Input Type Setting 3. Input Type Setting 3.1 Jumper plug setting 1 3 3.2 Parameter setting by software 14 4. Wiring AD268 terminal block Users Manual 15 Voltage input External 24Vdc power supply Current input 16 4. Wiring Page 18 5.2 A/D conversion data Users Manual 19 5V range: 0 D = 3200 A 20 0 to 10V range: D = 3200 A Page 22 1 to 5V / 4 to 20mA range: 4 to 20mA range: D = 800 A - 3200 1 to 5V range: D = 3200 A - 3200 Page 24 6. Parameters The contents of the AD268's buffer memory are as follows. Users Manual 25 26 Page 28 Page 30 6.2 Parameter setting procedure 6.3 Sample program for se tting the parameters 32 7. Troubleshooting Users Manual 33 Page Page 36 1. Introduction 1.1 DA264 Functions Page 38 2. Specifications Users Manual 39 40 3. Output Type Setting 3. Output Type Setting 3.1 Parameter setting by software Users Manual 41 DA264 terminal block 42 4. Wiring External 24Vdc power supply Voltage output Current output Page 44 5.2 D/A conversion data 46 5V range: Users Manual 47 0 to 10V range: 48 0 to 5V / 0 to 20mA range: 0 to 20mA range: A = 1.25 D 0 to 5V range: Users Manual 49 1 to 5V / 4 to 20mA range: 4 to 20mA range: A = 1.25 D + 4000 1 to 5V range: A = 0.3125 D + 1000 50 Page 52 6. Parameters Page 54 6. Parameters 6.2 Sample program to access the parameters 56 7. Troubleshooting Page Page Page 60 1. Introduction 1.1 TC218 Functions Page 62 2. Specifications Users Manual 63 64 3. Input Type Setting 3. Input Type Setting 3.1 Jumper plug setting 1 3 3.2 Parameter setting by software 66 4. Wiring TC218 terminal block Users Manual 67 100mV input (CH1 to CH8) Thermocouple input CH1 CH2 to CH8 Connect the thermistor attached to the TC218 68 4. Wiring Page 70 5.2 A/D conversion data Users Manual 71 Thermocouple (type K) input: 72 Thermocouple (type J) input: Users Manual 73 Thermocouple (type E) input: 74 Users Manual 75 The contents of the TC218's buffer memory are as follows. 76 Page 78 Page 80 6.2 Parameter setting procedure 82 6.3 Sample program for se tting the parameters Page 84 7. Troubleshooting