Chapter 2. Specifications
2-1
Chapter 2 Specifications
2.1 General
specifications
Table 2.1 General specifications
Item Specification
Operating temperature
0 to 55
°
C
Preserving temperature
-10 to 75
°
C
Operating humidity
No condensation 20 to 90% RH
Preserving humidity
No condensation 10 to 90% RH
Current consumption
5V DC approx. 480mA
I/O assignment
CPU Link
General Specification
Earth D-type
earth
2.2 Function
specifications
Table 2.2 Function specifications
Item Specification
No. of connected Link module
Max. 64 units per Link system
No. of mounted units
Max. 2 units per CPU ( 2 Link systems per CPU )
*1
No. of Link points
1,024 words per Link system ( 2,048 words per CPU )
*2
Data delivery system
Common data area system
Send / Receive distinction on data
area allocation
parameter setting from peripheral device
Designation of station No.
0 to 63: designated by rotary switch
Communication speed
1.0 Mbps
Transfer method
Half-duplex serial transfer, frame synchronization
Communication method
Token passing
Modulation method
Base band
Refresh time
At the time of transfer of 1,024 words with 64 stations
connected --- approx. 390ms
*3
Error check
CRC, overrun check, time-out, open circuit,
parameter error (dual designation of station No.,
overlapped Link area, etc. )
Funct
ion Speci
fi
cat
ion
Self-diagnosis
System ROM / RAM check, watchdog timer check,
transfer loop back check.
*1: Optical type link modules can only be installed into slots #0 to #2 on the basic base.
*2: Storage during power cuts is not possible.
*3: Apart from when peripheral devices are performing simultaneous access with the use of the link.
2.3
Transmission route specifications
Table 2.3 Transmission route specifications
Item Specification
Transfer path form
Loop type
Cable length
Between stations
Max. 1,000 m
Total extension
Max. 15,000 m
Error station processing
Bypass system
(When 5V DC is supplied from the outside.)
T
ransmission
specifications
Recommended cable and connector
*4
CA7103-[1] M-[2]L[3]1 Made by Nihhon OPNEXT
[1]:Cable Length, [2]:Cable Type, [3]: Code
Numbers
*4:Refer to an appendix 1 for the details of the recommendation cable
