Panasonic FP3 Technical Manual page 82

6-3. Terminology
route number:
RS232C:
RS422:
rung:
scan:
segment:
self-diagnostic function:
serial communication:
shared memory:
76
Route numbers are used to express the position of standard and high-level
link modules together. The numbers are assigned starting from the link
module at the smallest slot position as follows:
- FP-C: "route 1", "route 2" and "route 3" only with 3
standard link modules.
(For FP-C, no high-level link modules are available.)
- FP3/FP5: "route 1", "route 2", "route 3", "route 4", "route 5"
and "route 6" including 3 standard and 3 high-level
link modules.
- FP10S/FP10: "route 1", "route 2", "route 3", "route 4", "route 5",
"route 6", "route 7" and "route 8" including 3
standard and 5 high-level link modules.
An EIA communication standard for data transmission media that is less than
15 m. Most common serial communication standard.
An EIA communication standard for data transmission media.
Term for a ladder program. A rung refers to the programmed instructions that
drive one output.
Time required to read all inputs, execute the program, and update local and
remote information.
In a network, this refers to a piece of coaxial cable that is closed on both ends
by a terminator. The segment length is the distance between terminators and
varies depending on the type of network.
A function within the programmable controller which monitors operation and
indicates any fault that is detected.
A communication style in which data is transmitted bit by bit serially.
Memory that can be accessed by two or more pieces of devices. In FP series
programmable controllers, some intelligent modules have shared memory
which can be accessed by both the CPU and the intelligent module.
Route 5 (ET-LAN unit)
Route 4 (ET-LAN unit)
Route 3 (MEWNET-W link unit)
Route 2 (MEWNET-P link unit)
Route 1 (C-NET link unit)