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35 lines
1.3 KiB
35 lines
1.3 KiB
<?php
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namespace Tests\ModbusMaster;
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use PHPModbus\ModbusMaster;
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class Fc3ReadMultipleRegistersTest extends MockServerTestCase
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{
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public function testFc3Read1Word()
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{
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$mockResponse = '8180000000050003020003'; // respond with 1 WORD (2 bytes) [0, 3]
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$clientData = static::executeWithMockServer($mockResponse, function ($port) {
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$modbus = new ModbusMaster('127.0.0.1', 'TCP');
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$modbus->port = $port;
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$this->assertEquals([0, 3], $modbus->readMultipleRegisters(0, 256, 1));
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});
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$packetWithoutTransactionId = substr($clientData[0], 4);
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$this->assertEquals('00000006000301000001', $packetWithoutTransactionId);
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}
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public function testFc3Read3Words()
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{
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$mockResponse = 'e4710000000900030693e000040000'; // respond with 3 WORD (3*2 bytes) [147, 224, 0, 4, 0, 0]
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$clientData = static::executeWithMockServer($mockResponse, function ($port) {
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$modbus = new ModbusMaster('127.0.0.1', 'TCP');
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$modbus->port = $port;
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$this->assertEquals([147, 224, 0, 4, 0, 0], $modbus->fc3(0, 268, 3));
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});
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$packetWithoutTransactionId = substr($clientData[0], 4);
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$this->assertEquals('000000060003010c0003', $packetWithoutTransactionId);
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}
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} |