com.digitalpetri.modbus.requests.ReadCoilsRequest Maven / Gradle / Ivy
/*
* Copyright 2014 Kevin Herron
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.digitalpetri.modbus.requests;
import com.digitalpetri.modbus.FunctionCode;
/**
* This function is used to read from 1 to 2000 contiguous status of coils in a remote device. The Request PDU
* specifies the starting address, i.e. the address of the first coil specified, and the number of coils. In the PDU
* Coils are addressed starting at zero. Therefore coils numbered 1-16 are addressed as 0-15.
*/
public class ReadCoilsRequest extends SimpleModbusRequest {
private final int address;
private final int quantity;
/**
* @param address 0x0000 to 0xFFFF (0 to 65535)
* @param quantity 0x0001 to 0x07D0 (1 to 2000)
*/
public ReadCoilsRequest(int address, int quantity) {
super(FunctionCode.ReadCoils);
this.address = address;
this.quantity = quantity;
}
public int getAddress() {
return address;
}
public int getQuantity() {
return quantity;
}
}