A-4
Series 90™-30 PLC LONWORKS® Bus Interface Module User's Manual
–
June 1997
GFK-1322A
A
Interface Specifications
Serial Communications Protocol
Port
Firmware download port only
Electrical interface
EIA RS-422 compliant
Baud rate
9600 BPS
Data word length
8 bits
Stop bits
1
Parity
none
Transfer handshake
RTS/CTS
Hand-Held Programmer
Not supported in firmware. The HHP Present pin is supported
in hardware.
Network Communications
L
ON
W
ORKS
Transceivers
Transformer Isolated Twisted Pair
TP/XF-1250 Twisted Pair Transceiver
TP/XF-78 Twisted Pair Transceiver
TP/FT-10 Free Topology Twisted Pair Transceiver
Termination
external
SNVTs
Supports SNVTs 31 bytes or less in length
Series 90-30 Backplane Interface
Backplane processor
GE SI-30 ASIC (application specific integrated circuit)
Direct Memory Access
16-bit DMA transfer mode
Host application processor interface
API for Series 90-30 Smart Modules
Содержание 90-30 PLC
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