Eaton XN300 - Page 325

38 XN-322-2SI-RS serial interface specialty module
38.6 Memory layout
321 XN300 slice modules 02/24 MN050002EN Eaton.com
0x3205 – 2 ControlRb485
Reading back
Status485
Byte 0
Modem
Control-
Register
Bit 0 Data Terminal
Ready
0x0282
Bit 1 Request to Send
Bit 2 (fix) 1: RS485
mode
Bit 3 reserved
Bit 4 reserved
Bit 5 1: Echo disable
(default)
Bit 6 reserved
Bit 7 reserved
Byte 1
Line
Control
Register
Bit 0-1
00
01
10
11
Data word length
0: 5 Bit
1: 6 Bit
2: 7 Bit
3: 8 Bit
Bit 2
Number of
stop bits
0:
1:
1 stop bit,
1.5 stop bits for 5-
bit data word
length
2 stop bits for 6-
bit, 7-bit, 8-bit
data word length
Bit 3 Parity Enable
0: No parity
1: Parity
Bit 4 Even Parity Select
0: Odd
1: Even
Bit 5 reserved
Bit 6 Set Break
Bit 7 reserved
0x3206 – 1 ReceiveCount485 Byte counter for Rx-FiFo for RS-485 0x0284
0x3207 – 1 TransmitCount485 Number of bytes in TX send buffer 0x0285
CAN
Object
Index
Default
CAN
Mapping
Size
(byte)
Local I/O
description
Local I/O
addresses