Allen-Bradley MicroLogix 1100 Instruction Set Reference Manual

Publication 1763-RM001C-EN-P - October 2009
Function Files 73
5 0 Ethernet Port Link Status
This bit is set (1) when the Ethernet link is active.
1 Ethernet Port Connection Speed
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 indicates the duplex mode of the Ethernet controller:
•0: Half Duplex
•1: Full Duplex
4 Auto Negotiate Status
This bit is set (1) when the Auto Negotiation function is enabled.
5 to 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.
12 Advertise 100 MB Full Duplex Flag
This bit indicates advertisement status if Auto negotiate enabled:
•0: 100 MB Full Duplex was not advertised during auto negotiation
•1: 100 MB Full Duplex was advertised during auto negotiation
13 Advertise 100 MB Half Duplex Flag
This bit indicates advertisement status if Auto negotiate enabled:
•0: 100 MB Half Duplex was not advertised during auto negotiation
•1: 100 MB Half Duplex was advertised during auto negotiation
14 Advertise 10 MB Full Duplex Flag
This bit indicates advertisement status if Auto negotiate enabled:
•0: 10 MB Full Duplex was not advertised during auto negotiation
•1: 10 MB Full Duplex was advertised during auto negotiation
General Channel Status Block
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Allen-Bradley MicroLogix 1100 Specifications

General

Processor	32-bit
Programming Software	RSLogix 500
Mounting	DIN rail or panel mount
Power Supply	24V DC
Type	Compact PLC
Digital Inputs	12
Digital Outputs	8
Analog Inputs	4 (depending on model)
Analog Outputs	Optional with expansion module
Programming Language	Ladder Logic
Operating Temperature	0 to 55 °C (32 to 131 °F)
Series	MicroLogix