package com.serotonin.bacnet4j.npdu.mstp;
public class Constants {
/**
* This parameter represents the value of the Max_Info_Frames property of the node's Device object. The value
* of Max_Info_Frames specifies the maximum number of information frames the node may send before it must
* pass the token. Max_Info_Frames may have different values on different nodes. This may be used to allocate
* more or less of the available link bandwidth to particular nodes. If Max_Info_Frames is not writable in a node,
* its value shall be 1.
*/
public static final int MAX_INFO_FRAMES = 1;
/**
* This parameter represents the value of the Max_Master property of the node's Device object. The value of
* Max_Master specifies the highest allowable address for master nodes. The value of Max_Master shall be less
* than or equal to 127. If Max_Master is not writable in a node, its value shall be 127.
*/
public static final int MAX_MASTER = 127;
/**
* The number of tokens received or used before a Poll For Master cycle is executed: 50.
*/
public static final int POLL = 50;
/**
* The number of retries on sending Token: 1.
*/
public static final int RETRY_TOKEN = 1;
/**
* The minimum number of DataAvailable or ReceiveError events that must be seen by a receiving node in order
* to declare the line "active": 4.
*/
public static final int MIN_OCTETS = 4;
/**
* The minimum time without a DataAvailable or ReceiveError event within a frame before a receiving node
* may discard the frame: 60 bit times. (Implementations may use larger values for this timeout, not to exceed
* 100 milliseconds.)
*/
public static final int FRAME_ABORT = 100;
/**
* The maximum idle time a sending node may allow to elapse between octets of a frame the node is
* transmitting: 20 bit times.
*/
public static final int FRAME_GAP = 20;
/**
* The time without a DataAvailable or ReceiveError event before declaration of loss of token: 500 milliseconds.
*/
public static final int NO_TOKEN = 500;
/**
* The maximum time after the end of the stop bit of the final octet of a transmitted frame before a node must
* disable its EIA-485 driver: 15 bit times.
*/
public static final int POSTDRIVE = 15;
/**
* The maximum time a node may wait after reception of a frame that expects a reply before sending the first
* octet of a reply or Reply Postponed frame: 250 milliseconds.
*/
public static final int REPLY_DELAY = 250;
/**
* The minimum time without a DataAvailable or ReceiveError event that a node must wait for a station to begin
* replying to a confirmed request: 255 milliseconds. (Implementations may use larger values for this timeout,
* not to exceed 300 milliseconds.)
*/
public static final int REPLY_TIMEOUT = 255;
/**
* Repeater turnoff delay. The duration of a continuous logical one state at the active input port of an MS/TP
* repeater after which the repeater will enter the IDLE state: 29 bit times < Troff < 40 bit times.
*/
public static final int ROFF = 35;
/**
* The width of the time slot within which a node may generate a token: 10 milliseconds.
*/
public static final int SLOT = 10;
/**
* The minimum time after the end of the stop bit of the final octet of a received frame before a node may enable
* its EIA-485 driver: 40 bit times.
*/
public static final int TURNAROUND = 40;
/**
* The maximum time a node may wait after reception of the token or a Poll For Master frame before sending
* the first octet of a frame: 15 milliseconds.
*/
public static final int USAGE_DELAY = 15;
/**
* The minimum time without a DataAvailable or ReceiveError event that a node must wait for a remote node to
* begin using a token or replying to a Poll For Master frame: 20 milliseconds. (Implementations may use larger
* values for this timeout, not to exceed 100 milliseconds.)
*/
public static final int USAGE_TIMEOUT = 20;
public static final byte BROADCAST = (byte) 0xFF;
}