Toshiba 3000 - ADMAP-5 M Transmission Specifications

98 model 3000 ADMAP-5M AN712 Module User’s Manual
Appendix A Specifications
A
A.2 ADMAP-5M Transmission Specifications
Table A-2 ADMAP-5M Transmission Specifications
Item Specifications
Media access Token passing bus (IEEE802.4)
Data transmission speed 5 Mbps
Topology Dual bus
Transmission cable/cable length Coaxial cables
• Trunk cable: 500 m maximum per segment
• Drop cable: 30 m maximum
• Internal cable: 3 m maximum
No. of nodes 127 nodes maximum per system
No. of repeaters 6 repeaters maximum in total
Transmission mode Scan transmission
• High-speed cycle: 10 to 200 ms (in milliseconds)
• Medium-speed cycle: 50 to 1000 ms (in 10 ms)
• Low-speed cycle: 500 to 60000 ms (in 100 ms)
Message transmission
• MMS, LLC Type 1, LLC Type 3
Status change detecting function
•None
Scan transmission capacity 64 kW per system (16 bits per word)
1024 blocks per system (64 W per block)
Transmission capacity: 128 blocks per node
• High speed: 30 blocks maximum
• Medium speed: 64 blocks maximum
• Low speed: 64 blocks maximum
Throughput About 200 Kw/s (32 stations)
• (Example)
High-speed scan transmission: 32 blocks/25 ms
Medium-speed scan transmission: 48 blocks/100 ms
Low-speed scan transmission 64 blocks/1000 ms
Message transmission: 135 KB/s
Interface Type F coaxial connector
Cable Trunk cable: 10C-HFQSV-CCY, 7C-HFQSV-CCY
Drop cable: 5C-HFQSV-CCY
Internal cable: 33C-2V