Automation products
PLCs
2010
CA08103002Z-EN
www.eaton.comModular PLCs
14/45
ModularPLCsPLCs
XC-CPU121-2C256K
General
Standards
IEC/EN 61131-2
EN 50178
Ambient temperature
°C
0 -
+55
Storage
°C
-25
to +70
Mounting position
Horizontal
Relative humidity, non-condensing (IEC/EN 60068-2-30)
%
10 - 95
Air pressure (in operation)
hPa
795 - 1080
Vibration resistance
Frequency 5 - 9 Hz; 3.5 mm amplitude
9 - 150
Hz; 1.0 g constant acceleration
Mechanical shock resistance
15
g/11 ms
Overvoltage category
II
Pollution degree
2
Degree of protection
IP20
Rated insulation voltage
U
i
V
500
Emitted interference
EN 61000-6-4
Interference immunity
EN 61000-6-2
Backup time
At least 72 hours
Weight
kg
0.15
Electromagnetic compatibility (EMC)
→Page 14/58
Connections
Supply voltage
Connection type
-
Terminal capacity
mm
2
0.14 - 1 (
AWG28-18)
COM1 interface
Connection type
RJ45
COM2, CAN1, CAN2 interfaces
Connection type
Spring-loaded terminal block, 6pole
Terminal capacity
mm²
0.14 - 0.5 (
AWG28-20)
Power supply
Input voltage
V DC
24
Permissible range
V DC
20.4…28.8
Input power
W
Max. 1.44
Input current
mA
60
Ripple
%
≦ 5
Maximum heat dissipation (without local I/O)
P
v
W
6
Overvoltage protection
Yes
Protection against polarity reversal
Yes
Inrush current
x I
n
No limitation (limited only by upstream 24 V DC power supply unit)
Supply failure bridging
Duration of power failure
ms
10
Repetition rate
s
1
External supply filter
Part No.: XT-FIL-1, →Page 14/41
Memory
Program code/program data
kByte
256/244
Marker/input/output/retain data
kByte
16/4/4/8
Cycle time for 1 k of instructions (bits, bytes)
ms
< 0.3
Interfaces
Serial interface (RS232) without handshake lines
Baud rate
kbit/s
–
Baud rate
kbit/s
Programming
(
character format: 8 data bits, No parity, 1 stop bit)
19.2, 38.4 (
default), 57.6
Connector type
RJ45
Potential isolation
No
In transparent mode
Baud rate
kbit/s
0.3, 0.6, 1.2, 2.4, 4.8, 9.6, 19.2, 38.4, 57.6, 115.2
Character formats
8
E1, 8O1, 8N1, 8N2, 7E2, 7O2, 7N2, 7E1
Number of Send bytes for block
190
Number of Receive bytes for block
190




