HP MicroLogix 1761-NET-ENI manual Always set this to

ENI Configuration (Node 248 to 254) 4-9

2.Create your message logic using whatever conditional instructions you may need. This example uses bit B3:0/7 to condition the MSG instruction and message file 10, element 16 to manage the message session.

3.Open the message instruction and enter the appropriate variables. The variables are described in Table 4.2.

Table 4.2 Message Instruction Variables for Configuring ENI String Parameters

Variable	Setting
This Controller Parameters:
Communication Command	For the ENI configuration, this must be set to:
	• 485CIF for MicroLogix and SLC
	• an unprotected write command for CompactLogix and
	PLC-5
Data Table Address	In this example we are using string file 25, element 0 (ST25:0)
Size in Elements	For all ENI parameters that require a string configuration,
	always set this to 1.
Channel	The RS-232 communication channel that is connected to the
	ENI, typically 0 or 1.
Target Device Parameters:
Message Timeout	Leave this value at the default.
Data Table Offset	Always 0.
Local Node Addr (dec).	This is the destination node address, in this example it is 249.
Local/Remote	Always Local.

Publication 1761-UM006A-EN-P - February 2001