Chapter 2. Specifications 2-1 To; General Specifications; Function Specifications; Transmission Specifications - Hitachi EH-150 Applications Manual

Chapter 2 Specifications
2.1

General specifications

Operating temperature
Preserving temperature
Operating humidity
Preserving humidity
Current consumption
I/O assignment
Earth
2.2

Function specifications

No. of connected Link module
No. of mounted units
No. of Link points
Data delivery system
Send / Receive distinction on data
area allocation
Designation of station No.
Communication speed
Transfer method
Communication method
Modulation method
Refresh time
Error check
Self-diagnosis
*1: 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
Transfer path form
Cable length
Error station processing
Recommended cable
Recommended connector
Table 2.1 General specifications
Item
Table 2.2 Function specifications
Item
Table 2.3 Transmission route specifications
Item
Between stations
Total extension
Specification
0 to 55 °C
-10 to 75 °C
No condensation 20 to 90% RH
No condensation 10 to 90% RH
5V DC approx. 480mA
CPU Link
D-type earth
Specification
Max. 64 units per Link system
Max. 2 units per CPU ( 2 Link systems per CPU )
1,024 words per Link system ( 2,048 words per CPU )
Common data area system
parameter setting from peripheral device
0 to 63: designated by rotary switch
1.0 Mbps
Half-duplex serial transfer, frame synchronization
Token passing
Base band
At the time of transfer of 1,024 words with 64 stations
connected --- approx. 390ms
CRC, overrun check, time-out, open circuit,
parameter error (dual designation of station No.,
overlapped Link area, etc. )
System ROM / RAM check, watchdog timer check,
transfer loop back check.
Specification
Loop type
Max. 500 m
Max. 1,000 m
Bypass system
5D-2V with shield or equivalent
Link module : 413631-1 (AMP)
2-1
Chapter 2. Specifications
*1
*3
*2