C.2 Communication Specifications
YASKAWA ELECTRIC
SIEP C710636 02B YASKAWA U1000 Technical Manual 559
MEMOBUS/Modbus
Communications
C
C.2 Communication Specifications
MEMOBUS/Modbus specifications appear in Table C.1.
Table C.1 MEMOBUS/Modbus Communication Specifications
Item Specifications
Interface RS-422, RS-485
Communications Cycle Asynchronous (Start-stop synchronization)
Communication Parameters
Communication Speeds Available 1.2; 2.4; 4.8; 9.6; 19.2; 38.4; 57.6; 76.8; 115.2 kbps
Data length 8 bit (fixed)
Parity Select even, odd, or none
Stop bit 1 bit (fixed)
Protocol MEMOBUS/Modbus (using RTU mode only)
Max Number of Slaves 31 drives (RS-485)
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