The configuration software can directly read and command the ZHC4921 through the RS485 interface.
RS485 | RS232 | DO | DI | AI | AO | LAN | GPS | WIFI | |
ZHC4012 | 1 | 1 | |||||||
ZHC4921 | 1 | 1 | 4 | 4 | 4 | ||||
ZHC4922 | 1 | 1 | 4 | 4 | 4 | ||||
ZHC4931 | 1 | 1 | 1 | 2 | 1 | ||||
ZHC4661 | 1 | 4 | 2 | ||||||
ZHL4921G | 1 | 1 | 1 | 2 | 1 | 1 | YES | ||
ZHL4921W | 1 | 1 | 1 | 2 | 1 | 1 | YES | ||
ZHC2921 | 1 | 4 | 4 | 4 | |||||
ZHC2931 | 1 | 1 | 2 | 1 |