Name Value Internal value Internal
value, type
Default
Number of frames/Data
blocks in transmission
FIFO
1...40 1...40 BYTE 1
Behavior during reception
FIFO overflow
Discard new
received frames
1 BYTE 2
Overwrite oldest
frame in FIFO
2
Discard new
received frames
and send PRO-
FINET alarm
3
Overwrite oldest
frame in FIFO and
send PROFINET
alarm
4
Physical layer RS232 1 BYTE 1
RS485 2
RS422 3
RTS control None 0 BYTE 1
Telegram 1
RTS/CTS (DTE <-
> DTE)
2
RTS/CTS (DTE ->
DCE)
3
RTS/CTS (DCE <-
DTE)
4
TLS (RTS leading cycle) 0...850 ms 0...850 WORD 0
CDLY (RTS trailing cycle) 0...850 ms 0...850 WORD 0
Character timeout 0/32 bits 0/32 WORD 0
Telegram ending selection None 0 BYTE None
String (check
reception)
1
Telegram length 2
Character timeout 4
Telegram ending character 0 - 255 0 - 255 BYTE 0
Telegram ending value 0 - 65535 0 - 65535 WORD 0
Checksum None 0 BYTE 0
CRC8 1
CRC16 2
LRC 3
ADD 4
CS31 5
CRC8-FBP 6
XOR 7
CRC16 (Intel) 8
Communication Interface Modules (S500) > PROFINET
2019/04/17 3ADR010121, 13, en_US 1091