Allen-Bradley MicroLogix 1400 Instruction Manual page 84

efesotomasyon.com - Allen Bradley,Rockwell,plc,servo,drive
82 Function Files
General Channel Status Block
Word Bit Description
5 0 Ethernet Port Link Status
This bit is set (1) when the Ethernet link is active.
1 Ethernet Port Connection Speed
This bit is valid when the Auto Negotiation function is enabled.
This bit indicates the speed of the link layer driver operating at Ethernet port:
• 0: 10 Mbps
• 1: 100 Mbps
2 Reserved – Always zero
3 Duplex Mode
This bit is valid when the Auto Negotiation function is enabled.
This bit indicates the duplex mode of the Ethernet port:
• 0: Half Duplex
• 1: Full Duplex
4 Auto Negotiate Status
This bit is set (1) when the Auto Negotiation function is enabled.
5 Forced Speed Mode Status
This bit set (1) when the Auto Negotiation function is disabled and the Ethernet port speed is 100Mbps.
6 Forced Duplex Mode Status
This bit set (1) when the Auto Negotiation function is disabled and the Ethernet port's duplex mode is Full Duplex.
7 Reserved - Always zero
8 BOOTP Valid Flag (Default: 0, False)
This bit is set (1) when the appropriate BOOTP response has been received. If BOOTP Enable Flag in Ethernet Port
Communications Configuration File is set (1, Yes) and this flag is cleared (0, False), then network-related information
is invalid.
9 DHCP Valid Flag (Default: 0, False)
This bit is set (1) when the appropriate DHCP response has been received. If DHCP Enable Flag in Ethernet Port
Communications Configuration File is set (1, Yes) and this flag is cleared (0, False), then network-related information
is invalid.
10 BOOTP Status Flag
This bit is set (1) if BOOTP is selected as configuration method.
11 DHCP Status Flag
This bit is set (1) if DHCP is selected as configuration method.
Publication 1766-RM001A-EN-P - October 2008