Yaskawa Z1000U HVAC Matrix Bypass - Manual (Page 432)

F.1 N2 Specifications and Configuration
The bypasses can be monitored and controlled by a controller on a Metasys N2 network (N2) using RS-485 technology. The
bypass act as slaves on the N2 network.
Up to 255 bypasses can communicate on a single N2 network. If more bypasses or N2 devices are required, another N2 network
is required.
The N2 node address is configurable by a parameter in the bypass. This defines the physical address of the bypass on the N2
network.
Once the addressing is set, a controller can initiate communication to the bypass. The bypass will perform the specified function
and then send a response back to the controller.
Metasys Field Controller
Z1000U Bypass Slaves
Figure F.1 Connecting Multiple Bypasses to a Metasys N2 Network
N2 specifications appear in the following table:
Item Specifications
Interface RS-485
Communication Parameters
Communication Speed: 9600 bps
Data Length: 8-bit (fixed)
Parity: None
Stop Bit: 1-bit (fixed)
Protocol Metasys N2
Max Number of Drives 255 per N2 Network Segment
F.1 N2 Specifications and Configuration
432 YASKAWA SIEP YAIZ1D 01A Z1000U HVAC MATRIX Drive Bypass Technical Manual