Справочник Пользователя для ICP DAS USA 7000
7000 Bus Converter User Manual (version 1.2,Feb/2003, 7PH-006-10) --------------- 7
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7000 D/A User Manuals: for 7021, 7022, and 7024.
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7000 Timer/Counter User Manual: for 7080D
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7000 Embedded Controller User Manual: for 7188
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MMICON Hardware Manual: for MMICON
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MMIDOS User Manual: for MMICON software
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Application Note: EM001 for MMICON evaluation
1.3 Common Features of the 7000 Series
Isolation voltage: 3000 VDC
Communication:
•
Asynchronous half-duplex 2-wire RS-485 network
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Max. Distance without repeater= 1.8Km
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Speed=1200,2400,4800,9600,19200,38400,57600,115200
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Connecting 256 modules in one RS-485 bus without repeater
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Multiple baud rate and multiple data format can share the same
RS-485 bus (7520/7510)
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Different baud rate and the same module address can share the same
RS-485 bus
•
Connecting 256*8=2048 modules max. In one RS-485 bus with
repeater.
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7000 series data format=1 start + 8 data + 1 stop + no parity = 10-bit
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Two extra checksum bytes can be enable/disable
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Built-in transient voltage suppresser and PTC protector
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Sharing the same RS-485 bus with the RS-485 or RS-232 device,
which communicates in multiple data format (not 10-bit) and multiple
baud rate. (Use 7520 to convert RS-232 to RS-485)
baud rate. (Use 7520 to convert RS-232 to RS-485)
Power:
•
+10V ~ +30V DC
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Power reverse protection, Over-voltage brown-out protection
System:
•
Dual watchdog inside, power-on start value and safe value for host
failure
•
Operating temperature: -25 to 75
º
C (14 to 185
º
F)
•
Storage temperature: -25 to 80
º
C (-13 to 185
º
F)
•
Humidity: 5 to 95%, non-condensing