Eaton XN300 - Page 329

38 XN-322-2SI-RS serial interface specialty module
38.6 Memory layout
325 XN300 slice modules 02/24 MN050002EN Eaton.com
0x4203 – 2 DivisorLatch485
Baud rate setting
examples
[in kbaud]
0xC0C0: 4800
0xC060: 9600
0xC030: 19200
0xC180: 38400
0xC010: 57600
0xC008: 115200
Bit 0-13 clock divider Freq/(16*baud
rate)
0x0202
Bit 14-15 input
frequency
select
00: 1.8432 MHz
01: 1 MHz
10: 7.3728 MHz
11: 14.7456 MHz
0x4204
–
1 SetPhysics485 Bit 0 RS485 Termi-
nation
Resistor
1: active, no read
back
0x0380
Bit 1 RS-485
spread
resistor
1: active, no read
back
Bit 2-5 reserved
Bit 6 Resistors acti-
vation (Pull-
Up/Down)
1: active, no read
back
Bit 7 reserved
0x4205
–
max.
120
TransmitBuffer232
Maximum register
size of 120 bytes
The memory contents will be written to Tx-FiFo –
0x4206
–
max.
120
ReceiveBuffer232
Maximum register
size of 120 bytes
The data will be read from Rx-FiFo and written to
the register.
–
0x4207
–
max.
120
TransmitBuffer485
Maximum register
size of 120 bytes
Memory contents will be written to RS-485 Tx-FiFo –
0x4208
–
max.
120
ReceiveBuffer485
Maximum register
size of 120 bytes
The data will be read from RS-485 Rx-FiFo and
written to the register.
–
CAN
Object
Index
Default
CAN
Mapping
Size
(byte)
Local I/O
description
Local I/O
addresses