YASKAWA GA800 Technical Reference page 860

12.7 F: Options
Parameter
F6-50 to F6-71
F7-01 to F7-15
F7-16
F7-17 to F7-42
F7-60 to F7-79
■
Gateway Mode
Note:
When you use Gateway Mode, do not install the communication option in slave drives. If you install a communication option in a slave
drive, the drive commands and responses will not synchronize.
In gateway mode, you can use one communication option to communicate with more than one drive.
You can use one communication option to connect a maximum of five drives to the field bus communications. Refer
to Figure 12.76 for more information.
When you install a communication option on the master drive, you can use the RS-485 communication card to
transmit data to slave drives that do not have a communication option.
Item
Applicable options
Number of connected drives
Communication specifications
Commands/responses
Synchronous control
Note:
• The communication speed in gateway mode is slower than the speed in fieldbus communications. Make sure that the speed is acceptable for
your system.
• Response speed with the communication option is slower than with point-to-point communications.
• Set H5-02 [Communication Speed Selection] and H5-03 [Communication Parity Selection] to the same value on the master drive and slave
drives.
WARNING! Injury to Personnel. Separately prepare safety protection equipment and systems, for example fast stop switches. If the
motor does not stop correctly from the disconnection of communications cable or electrical interference, it can cause serious injury.
Setting Gateway Mode
Table 12.50shows sample settings to connect 4 slave drives:
860
DeviceNet LonWorks
SI-N3 SI-W3
x -
- -
- -
- -
- -
Figure 12.76 Connection Examples in Gateway Mode
Table 12.49 Specification
All options that support the MEMOBUS access function (for example, PROFIBUS-DP, PROFINET, EtherNet/IP, EtherCAT)
Maximum: 5 units
MEMOBUS/Modbus (RTUmode) communications
The controller can send this data to each drive (Drive 0 to Drive 4):
• Control commands: Run commands and frequency references
• Control responses: Output frequency and drive status (during run, faults)
• Read and write parameters
• Read monitors
Not supported
Modbus TCP/IP PROFINET
SI-EM3 SI-EP3
-
x
x
-
-
Specification
YASKAWA SIEPC71061737D GA800 Drive Technical Reference
EtherNet/IP
SI-EN3
- -
x x
- -
x x
- -