-100-
v6.3
Industrial Protocols
19.2. RS-485 / Modbus module
Technical details:
•
Protocols:
RS-485 and Modbus
•
Standard:
EIA RS-485
•
Physical Media:
Twisted pair
•
Connector:
DB9
•
Network Topology:
Point-to-point, Multi-dropped, Multi-point
•
Maximum Devices:
32 drivers or receivers
•
Mode of Operation:
Differential signaling
•
Maximum Speed:
460800 bps
•
Voltage Levels:
-7 V to +12 V
•
Mark(1):
Positive Voltages (B-A > +200 mV)
•
Space(0):
Negative voltages (B-A < -200 mV)
•
Available Signals:
Tx+/Rx+, Tx-/Rx-(Half Duplex)Tx+,Tx-,Rx+,Rx-(Full Duplex)
•
Available sockets in Waspmote:
socket 0 (special SPI Waspmote required)
Applications:
•
Industrial Equipment
•
Machine to Machine (M2M) communications
•
Industrial Control Systems, including the most common versions of Modbus and Profibus
•
Programmable logic controllers
•
RS485 is also used in building automation
•
Interconnect security control panels and devices
Figure: RS-485 / Modbus module
Содержание Waspmote
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Страница 11: ... 11 v6 3 Waspmote Kit Connect the battery in Waspmote Connect the sensor board Switch it on ...
Страница 59: ... 59 v6 3 Sensors Vibration Acceleration Free fall ...
Страница 79: ... 79 v6 3 LoRa Figure Channel frequencies in the 868MHz band Figure Channel frequencies in the 900MHz band ...
Страница 98: ... 98 v6 3 RFID NFC ...