HP MicroLogix 1761-NET-ENI manual ENI #2 Configuration Rung Descriptions Function

7-8Connecting 1769-L20 CompactLogix Controllers on Ethernet

The 5 rungs used to configure ENI #2 are defined as follows:

Table 7.3 ENI #2 Configuration - Rung Descriptions

Rung	Function
Rung 2	This rung initiates the process and configures the ENI module’s Serial port for
	38400 Baud.
Rung 3	This rung is initiated by the Done bit of the previous MSG and it disables
	BOOTP.
Rung 4	This rung configures the ENI with its own IP address.
Rung 5	This rung adds the IP address of the SLC 5/05 controller to the ENI module’s
	Message Routing table at DF1 node 1. This means that any message sent by
	the -L20 controller with a DF1 destination address of 1, will be sent to the SLC
	5/05 controller on Ethernet.
Rung 6	This rung adds the IP address of the 1756-ENET module to the ENI module’s
	Message Routing table at DF1 node 45. This means that any message sent by
	the -L20 controller with a DF1 destination address of 45, will be sent to the
	5550 controller in slot 0, via the 1756-ENET module on Ethernet.
Rung 7	This rung instructs the ENI module to save the configuration data sent to it in
	non-volatile memory.

The following table contains the information needed to send messages to the ENI to configure it for this example. For a complete list of ENI configurable features, please refer to Chapters 4 and 5.

Table 7.4 ENI #2 Configuration - Message Instructions Parameters

Configuration	Configuration Function	Data Type	Message Node	Message	Message Function
Node Number			Number	Length (bytes)
101	Configure Route 1 Address	Integers	1	8	Route DF1 MSG to IP at Address 1
145	Configure Route 45 Address	Integers	45	8	Route DF1 MSG to IP at Address 2
248	Save/Reset	Integer	N/A	2	0	= save configuration to flash
250	TCP/IP Config.	Integer	N/A	8	Assign an IP Address to the ENI
252	BOOTP	Integer	N/A	2	1	= disable BOOTP
253	Baud Rate	Integer	N/A	2	6	= 38400 Baud

Publication 1761-UM006A-EN-P - February 2001