Omron CP1H CPU Operation Manual page 486

DeviceNet I/O Link Units
452
(4) LED Indicators
Used to indicate CPM1A-DRT21 status, as shown in the following table.
Indicator Color Status
MS Green Lit
Flashing
Red Lit
Flashing
--- OFF
NS Green Lit
Flashing
Red Lit
Flashing
--- OFF
(5) Expansion I/O Connecting Cable
Connected to the expansion connector of a CP1H CPU Unit or a CP-
series Expansion Unit or Expansion I/O Unit. The cable is included with
the DeviceNet Unit and cannot be removed.
Note Do not touch the cables during operation. Static electricity may
cause operating errors.
(6) Expansion Connector
Used for connecting CP-series Expansion Units or Expansion I/O Units.
Specifications
Model number
Master/slave
Number of I/O points
Number of words allocated in
CPU Unit I/O memory
Node number setting
Communications current con-
sumption
Condition
Normal status • Normal status
Not set • Switch settings being read
Fatal error • Fatal hardware error
(watchdog timer)
Nonfatal error • Incorrect switch settings.
Power not supplied. • Power not supplied.
• Waiting for initialization to
start.
• Reset in progress.
Online and commu- • Network normal and com-
nications estab- munications established.
lished.
Online and commu- • Network normal and com-
nications not estab- munications not estab-
lished. lished.
Fatal communica- Unit has detected network
tions error status preventing normal
communications.
• Node number duplications
• Bus OFF detected.
Nonfatal communi- • Communications timeout
cations error or communications error
for one or more slaves.
Online and power Waiting for node number
OFF. check by master.
• Switch setting error.
• Power not supplied.
CPM1A-DRT21
DeviceNet Slave
32 input points, 32 output points
2 input words, 2 output words
(Allocated in the same way as other Expansion Units
and Expansion I/O Units.)
Set using the rotary switches
(Set before turning ON the CPU Unit's power supply.)
30 mA
Section 7-7
Meaning