Honeywell XYR 5000 LINE manual Command 11- Get Com Event Counter, Command 12- Get Com Event Log

Subfunction Code	Transmitter Device Status
12	Return Bus Communication Error Count
13	Return Bus Exception Error Count
14	Return Slave Message Count
15	Return Slave No Response Count
16	Return Slave NAK Count
17	Return Slave Busy Count
18	Return Bus Character Overrun Count
19+	NOT USED

Note that identical information is returned for any device ID that the Base Radio has control of (i.e. including Transmitters mapped to virtual device IDs when operating in the device ID mapping mode (See Section 6.2).

6.3.3 Command 11- Get Com Event Counter

This command returns a two-byte status word and the device’s event counter. The status word will either be 0 or 65535 if the previous command is still being processed. The event counter is incremented for each successful message received. The counter is not incremented for commands that return exception responses or commands that fetch event counters. The event counter will eventually roll over to 0 after reaching a count of 65535. Note that identical information is returned for any device ID that the Base Radio has control of (i.e. including Transmitters mapped to virtual device IDs when operating in the device ID mapping mode).

For further details on this command, please consult the Modbus protocol specification.

6.3.4 Command 12- Get Com Event Log

This command returns a status word, communications event counter, message count, and a field of bytes from the communications event log. The status word and communications event counter are identical to those returned by Command 11 (Get Com Event Counter) above. The message count is a count of the total number of messages received by this device, including messages intended specifically for this device as well as other devices on the Modbus network. The event log keeps track of information on the last 7 communications events. Note that identical information is returned for any device ID that the Base Radio is controlling (including Transmitters mapped to virtual device IDs when operating in the device ID mapping mode).

For further details on this command, please consult the Modbus protocol specification.

6.3.5 Command 17- Report Slave ID

This command returns the device type, device status, and a run indicator status byte. The 16-bit device type and device status words are identical to those held in the holding registers. The run indicator status byte is 255 (0xFF hex) if the device is online and 0 (0x00 hex) if the device is offline. Unlike some of the other diagnostics commands, different information is returned depending on whether the device ID used in this command corresponds to the Base Radio or one of the Transmitters mapped to a device ID when operating in the device ID mapping mode.

For further details on this command, please consult the Modbus protocol specification.

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