Siemens SIMATIC IPC PX-39A PRO - Page 15

Configure firmware
2.4 "Advanced" tab
Firmware/BIOS description SIMATIC IPC BX-39A, IPC PX-39A, IPC PX-39A PRO
Operating Instructions, 01/2023, A5E51110693-AA
15
Firmware setting Value Setting in de-
livery state
Meaning
• Autodirection
(only when "Trans-
ceiver Mode" =
"RS485 Half Duplex"
or "Transceiver Mode"
= "RS485/422 Full Du-
plex")
Automatic
x
The direction setting of the COM1 port is automatic.
• Driver Disable Delay
(only when "Trans-
ceiver Mode" =
"RS485 Half Duplex"
or "Transceiver Mode"
= "RS485/422 Full Du-
plex")
0 bit
The driver disable delay is disabled.
1 bit
x
The driver disable delay is set to one bit length.
2 bits
The driver disable delay is set to two bit lengths.