HP MicroLogix 1761-NET-ENI Message Instruction Error Codes, Error Codes Generated by the ENI

Troubleshooting 8-3

Error Codes Generated by the ENI

This table shows the error codes that may be generated by the ENI. A full listing of error codes that may be generated by the Message Instruction is shown below.

Error Code	Description of Error Condition
10H	Target node cannot respond because of incorrect command parameters or unsupported command. Possible causes:
	• The data size of the message is invalid.
	• The data format is incorrect for any of the supported PCCC messages.
	• Register parameters are not formatted correctly, or there is not enough data provided.
	• RS-232 configuration packet data is not the correct size.
	• The Node Address is invalid or out-of-range.
	• The distant ENI, controller, or device may not be responding.
	• There may be a break in the connection between the ENI devices or controllers.
	• BOOTP/DF1 parameter is invalid.
30H	PCCC Description: Remote station host is not there, disconnected, or shutdown.
D0H	One of the following:
	• No IP address configured for the network or ENI not configured for Node Address used.
	• Bad command - unsolicited message error.
	• Bad address - unsolicited message error.
	• No privilege - unsolicited message error.

Message Instruction Error Codes

When the controller detects an error during the transfer of message data, the controller sets the ER bit and enters an error code that you can monitor from your programming software.

Error Code	Description of Error Condition
02H	Target node is busy. NAK No Memory retries by link layer exhausted.
03H	Target node cannot respond because message is too large.
04H	Target node cannot respond because it does not understand the command parameters OR the control block may have been
	inadvertently modified.
05H	Local processor is off-line (possible duplicate node situation).
06H	Target node cannot respond because requested function is not available.
07H	Target node does not respond.
08H	Target node cannot respond.
09H	Local modem connection has been lost.
0BH	Target node does not accept this type of MSG instruction.
0CH	Received a master link reset (one possible source is from the DF1 master).
10H	Target node cannot respond because of incorrect command parameters or unsupported command.
12H	Local channel configuration protocol error exists.
13H	Local MSG configuration error in the Remote MSG parameters.

Publication 1761-UM006A-EN-P - February 2001