FANUC Robotics America GFK-1541B User Manual
Page 101
ries 90™ PLC User's Manual
–
May 2002
GFK-1541B
3
(Status Bit 7) RS-485 Port Fuse Blown (Series 90-30 Ethernet Interface and Series 90-70
Ethernet Interface (Type 2) only):
This bit is set to 1 when the RS-485 Port fuse is blown.
Otherwise it is set to 0. Operation is affected only if the Interface is in the Software Load state.
This fuse is not field replaceable.
(Status Bit 8) AAUI (90-30) or AUI/BNC (90-70) Fuse Blown:
This bit is set to 1 when a
network port fuse is blown. Otherwise, it is set to zero. This failure is also reported to the PLC
Fault Table. The applicable network port fuses and PLC Fault Table entries for each of the
Ethernet Interfaces are listed below.
Series 90-30 Ethernet Interface:
AAUI port fuse (FU1) (NOT user replaceable)
PLC Fault Table entry – “LAN interface hardware failure; switched off network”.
Series 90-30 CPU364:
AAUI port fuse (FU1) (user replaceable)
PLC Fault Table entry – “LAN controller fuse blown; off network”.
Series 90-70 Ethernet Interface (Type 2)
AUI port fuse (FU3) (user replaceable) or BNC port fuse (FU1) (NOT user replaceable)
PLC Fault Table entry – “LAN controller fuse blown; off network”.
Operation on other ports is not affected. This problem can be caused by a defective transceiver,
shorted network or transceiver cable, or a defective Ethernet Interface. Isolate and correct the
cause of the problem, and then replace the fuse or the Ethernet Interface.
(Status Bit 9) Any SRTP Channel Error:
This bit is set to 1 if there is presently an error on any
of the established SRTP channels; i.e., if the individual Channel Error bit is set for any channel.
(This bit does not apply to Modbus/TCP Channels.)
(Status Bit 13) LAN OK:
T
his input will be held at the value 1 as long as the Ethernet Interface
software is able to communicate on the network. If the network should become inaccessible from
this Interface, due either to local or network problems, this bit will be set to 0. If LAN
communication becomes possible, it is set to 1.
(Status Bit 14) Resource Problem:
This input is set to 1 whenever the Ethernet Interface
software experiences a resource problem (i.e., lack of data memory). The bit is reset to 0 on a
subsequent PLC sweep. The Ethernet Interface may or may not be able to continue functioning,
depending on the severity of the problem. Use the PLC Fault Table to understand the problem.
See Chapter 8, “Troubleshooting”, for further information. In addition, you can use the Station
Manager STAT B and LOG commands to further understand the problem. See the Station
Manager Manual, GFK-1186, for more information.
(Status Bit 16) LAN Interface OK Bit:
This input is set to 1 by the Ethernet Interface each PLC
scan. If the Ethernet Interface cannot access the PLC, the CPU will set this bit to 0. When this bit
is 0, all other Ethernet Interface Status bits are invalid.
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