Overview of Momentum M1 Processor Adapters
42 870 USE 101 10 V.2
171 CCS 780 00, Continued

LED Indicators This Processor Adapter has two LED indicators, RUN and COM ACT. Their

functions are described in the table below:

Specifications The following table contains specifications for the 171 CCS 780 00 Momentum M1

Processor Adapter:
Continued on next page
LED Status Function
Start up Both Single flash. Indicates good health.
RUN Green On continuously when the CPU has received power and is
solving logic.
Flashes an error pattern if the CPU is in kernel mode.
(See
Run LED Flash Patterns and Error Codes
on page 417)
Off CPU is not powered up or is not solving logic.
COM ACT Green May be on continuously or blinking. Indicates activity on
Modbus port 1.
Off No activity on Modbus port 1.
Memory
Internal Memory 64K bytes
User Memory 2.4K words
Flash RAM 256K bytes
Clock Speed 20 MHz
984LL Input and Output References
Registers 2048
Discretes 2048 (any combination of 0
x
and 1
x
references)
IEC Input and Output References
Registers 2048
Discretes 2048 (any combination of 0
x
and 1
x
references)
I/O Servicing
Local I/O Services all the points on any host Momentum I/O base
Watchdog timeout 419 ms
Logic solve time 0.25 ms/k ladder logic instructions