AMX Anterus manual AXLink Channels, Channel Type Function Description

Programming

Send Commands (Cont.)

?ER	The Error Command (ER), command is sent by the Master to request the num-
Error Command	ber of invalid tags reads encountered by the ANT-RDR.
	The ANT-RDR will respond with the number of invalid tags reads, then it will
	clear the invalid read count.
	Note: The ?ER command does not care why there are invalid tag reads; it just
	keeps count until it gets to a certain number and then it is cleared.
	• Response: ER <NUMERR>
	Where:
	• NUMERR: the number of invalid tags reads encountered by the ANT-RDR
	since the last ?ER request.
	Examples:
	SEND_COMMAND '?ER
	Request number of invalid tags reads
	SEND_ COMMAND 'ER 5
	Report 5 invalid tags reads since last ?ER request.
VER	This command is a request for the firmware version.
Request firmware version	In response, the device sends a command in the form of 'vX.XX' (e.g. v1.02) to
	the Master.

AXLink Channels

Whenever communications with a Master is established, the Master assumes the ANT-RDR is at the default channel status. Default channel status assumed by the Master is all Channels are OFF. However, the ANT-RDR may not be in this default state and needs to inform the Master by sending an update for each channel that is ON. After the ANT-RDR reports its Device ID to tell the Master it is online, the ANT-RDR should begin to update the Master with any channels that are currently on.

The Guardian Channels are defined below:

AXLink Channels

Channel	Type	Function	Description
1-138		Not Used
139	CMD/FDBK	Auto Poll	The ANT-RDR device will enable its auto poll feature when the channel
			is ON and disable the auto poll feature when the channel is off.
140-255		No Used

The Type column denotes who initiates the channel change. The Master directs the ANT-RDR to change its state through channels with type CMD. The ANT-RDR informs the Master of state changes through channels with type FDBK. Some channels can be used for both CMD and FDBK.

30 Anterus RFID Solution