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Implementation of the Modbus protocol in Java language
package com.invertor.modbus.utils;
/*
* Copyright (C) 2016 "Invertor" Factory", JSC
* [http://www.sbp-invertor.ru]
*
* This file is part of JLibModbus.
*
* 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.
*
* Authors: Vladislav Y. Kochedykov, software engineer.
* email: [email protected]
*/
/**
* The list of sub-function codes supported by the serial line devices.
* Hex Dec
* 00 00 Return Query Data
* 01 01 Restart Communications Option
* 02 02 Return Diagnostic Register
* 03 03 Change ASCII Input Delimiter
* 04 04 Force Listen Only Mode
* 05.. 09 RESERVED
* 0A 10 Clear Counters and Diagnostic Register
* 0B 11 Return Bus Message Count
* 0C 12 Return Bus Communication Error Count
* 0D 13 Return Bus Exception Error Count
* 0E 14 Return Slave Message Count
* 0F 15 Return Slave No Response Count
* 10 16 Return Slave NAK Count
* 11 17 Return Slave Busy Count
* 12 18 Return Bus Character Overrun Count
* 13 19 RESERVED
* 14 20 Clear Overrun Counter and Flag
* N.A. 21 ...
* 65535
*/
public enum DiagnosticsSubFunctionCode {
RETURN_QUERY_DATA(0x0),
RESTART_COMMUNICATIONS_OPTION(0x1),
RETURN_DIAGNOSTIC_REGISTER(0x2),
CHANGE_ASCII_INPUT_DELIMITER(0x3),
FORCE_LISTEN_ONLY_MODE(0x4),
CLEAR_COUNTERS_AND_DIAGNOSTIC_REGISTER(0xA),
RETURN_BUS_MESSAGE_COUNT(0xB),
RETURN_BUS_COMMUNICATION_ERROR_COUNT(0xC),
RETURN_BUS_EXCEPTION_ERROR_COUNT(0x0D),
RETURN_SLAVE_MESSAGE_COUNT(0x0E),
RETURN_SLAVE_NO_RESPONSE_COUNT(0x0F),
RETURN_SLAVE_NAK_COUNT(0x10),
RETURN_SLAVE_BUSY_COUNT(0x11),
RETURN_BUS_CHARACTER_OVERRUN_COUNT(0x12),
CLEAR_OVERRUN_COUNTER_AND_FLAG(0x14),
RESERVED(0xffff);
final private int value;
DiagnosticsSubFunctionCode(int value) {
this.value = value;
}
static public DiagnosticsSubFunctionCode get(int value) {
for (DiagnosticsSubFunctionCode func : DiagnosticsSubFunctionCode.values()) {
if (func.value == value) {
return func;
}
}
return RESERVED;
}
public int toInt() {
return value;
}
@Override
public String toString() {
return String.valueOf(value);
}
}