Specifications

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Controller tasks:
• Continuous
• Periodic
• Event
• 32 tasks (only 1
continuous)
• event tasks: supports
all event triggers
• 16 tasks (only 1
continuous)
• event tasks: supports
consumed tag trigger,
EVENT instruction, axis,
and motion event triggers
• 1769-L35x: 8 tasks
• 1769-L32x: 6 tasks
• 1769-L31: 4 tasks
• only 1 continuous
• event tasks: supports
consumed tag trigger and
EVENT instruction
• 32 tasks (only 1
continuous)
• event tasks: supports
all event triggers, plus
outbound and Windows
events
• 8 tasks (only 1
continuous)
• event tasks: supports
consumed tag trigger and
EVENT instruction
• 8 tasks (only 1
continuous)
• event tasks: supports
axis and motion event
triggers
User memory
1756-L55M12: 750 KB
1756-L55M13: 1.5 MB
1756-L55M14: 3.5 MB
1756-L55M16: 7.5 MB
1756-L55M22: 750 KB
1756-L55M23: 1. 5 MB
1756-L55M24: 3.5 MB
1756-L61: 2 MB
1756-L62: 4 MB
1756-L63: 8 MB
1768-L43: 2 MB
1769-L31: 512 KB
1769-L32x: 750 KB
1769-L35x: 1.5 MB
1789-L10: 2 MB
3 slots
no motion
1789-L30: 64 MB
5 slots
1789-L60: 64 MB
16 slots
1794-L34: 512 KB
256 KB
768 KB with memory
expansion
Nonvolatile user memory
1756-L55M12: none
1756-L55M13: none
1756-L55M14: none
1756-L55M16: none
1756-L55M22: yes
1756-L55M23: yes
1756-L55M24: yes
1756-L6x:
CompactFlash
CompactFlash CompactFlash none yes yes (expansion memory)
Built-in communication
ports
1 port RS- 232 serial
(DF1 or ASCII)
1 port RS- 232 serial
(DF1 or ASCII)
• 1769-L31 has 2 RS-232
ports (one DF1 only, other
DF1 or ASCII)
• 1769-L32C, -L35CR has
1 ControlNet port and 1
RS-232 serial port (DF1 or
ASCII)
• 1769-L32E, -L35E has 1
EtherNet/IP port and 1
RS-232 serial port (DF1 or
ASCII)
depends on personal
computer
• 1 port RS-232 serial
(DF1 or ASCII)
• 2 slots for 1788
communication cards
• 1 port RS-232 serial
(DF1 or ASCII)
• 1 slot for 1788
communication cards
Communication options
(these options have
specific products and
profiles for their
platform - other options
are available via third
party products and
generic profiles)
EtherNet/IP
ControlNet
DeviceNet
Data Highway Plus
Universal Remote I/ O
serial
Modbus via ladder routine
DH-485
SynchLink
EtherNet/IP
DeviceNet
serial
Modbus via ladder routine
DH-485
EtherNet/IP
ControlNet
DeviceNet
serial
Modbus via ladder routine
DH-485
EtherNet/IP
ControlNet
DeviceNet
serial
EtherNet/IP
ControlNet
DeviceNet
serial
Modbus via ladder routine
DH-485
EtherNet/IP
ControlNet
DeviceNet
serial
Modbus via ladder routine
DH-485
Connections
64 over ControlNet (48
recommended)
128 over EtherNet/IP
64 TCP/IP
128 over EtherNet/IP
64 TCP/IP
32 over ControlNet
32 over EtherNet/IP
64 TCP/IP
64 over ControlNet (48
recommended)
EtherNet/IP limited by
type and number of cards
32 over ControlNet
32 over EtherNet/IP
64 TCP/IP
32 over ControlNet
32 over EtherNet/IP
64 TCP/IP
Controller redundancy full redundancy support not applicable not applicable not applicable
controller hot backup via
DeviceNet
not applicable
Native I/O 1756 ControlLogix I/O 1769 Compact I/O 1769 Compact I/O none
1794 FLEX I/O
1797 FLEX Ex I/O
1794 FLEX I/O
1797 FLEX Ex I/O
Simple motion
stepper
servo via DeviceNet
analog ac drive
stepper
servo via DeviceNet
analog ac drive
stepper
servo via DeviceNet
analog ac drive
stepper
servo via DeviceNet
analog ac drive
stepper
servo via DeviceNet
analog ac drive
stepper
servo via DeviceNet
analog ac drive
Integrated motion
SERCOS interface
analog interface with
options:
• quadrature encoder
input
• LDT input
• SSI input
SERCOS interface not applicable
SERCOS interface
analog interface with
options:
y quadrature encoder
input
y LDT input
y SSI input
not applicable
1 full servo
1 feedback axis
Mounting and/or
installation options
1756 chassis
panel mount
DIN rail
panel mount
DIN rail
none
panel mount
DIN rail
embedded
Programming languages
• relay ladder
• structured text
• function block
• sequential function
chart
• relay ladder
• structured text
• function block
• sequential function
chart
• relay ladder
• structured text
• function block
• sequential function
chart
• relay ladder
• structured text
• function block
• sequential function
chart
• external routines
(Windows DLLs developed
using C/C++)
• relay ladder
• structured text
• function block
• sequential function
chart
y relay ladder
y structured text
y function block
y sequential function
chart
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