Omron NX1 Series Manual page 21

Communications standard
EtherCAT master specifications
Physical layer
Modulation
Baud rate
Duplex mode
Topology
Transmission media
Built-in
EtherCAT port
Maximum transmission distance between nodes
Maximum number of slaves
Range of node addresses that can be set
Maximum process data size
Maximum process data size per slave
Communications cycle
Sync jitter
Units on CPU Rack
Unit
configuration
Maximum number of NX Units for entire controller
Power supply
Accuracy
Internal clock
Retention time of built-in capacitor
*1. Execution objects and variable tables (including variable names)
*2. Memory used for CJ-series Units is included.
*3. The value can be set in 1-word increments. The value is included in the total size of variables without a Retain attribute.
*4. The value can be set in 1-word increments. The value is included in the total size of variables with a Retain attribute.
*5. It is not possible to use the maximum number of words simultaneously for all banks, because the memory capacity for variables with a Retain
attribute is limited to 1.5 MB.
*6. For terminology, refer to the NJ/NX-series CPU Unit Motion Control User's Manual (Cat. No. W507).
*7. Data will be refreshed at the set interval, regardless of the number of nodes.
*8. "pps" means packets per second, i.e., the number of communications packets that can be sent or received in one second.
*9. The allowable bandwidth varies depending on the RPI of the connection in use, the primary task period, and the number of ports simultaneously
used for EtherNet/IP communications.
*10.When tag sets that exceed the total of 40 are set, a Number of Tag Sets for Tag Data Links Exceeded (840E0000 hex) occurs.
*11.As the EtherNet/IP port implements the IGMP client, unnecessary multi-cast packets can be filtered by using an Ethernet switch that supports
IGMP Snooping.
*12.Ring topology is supported with the project version 1.40 or later of NX102-@@00.
Slaves on a ring topology should support a ring topology. If Omron slaves, please see the user's manual of slaves.
*13.For project unit version earlier than 1.40, the data must be within four frames.
*14.You can check the I/O allocation status with the Sysmac Studio. Refer to the NJ/NX-series CPU Unit Software User's Manual (Cat. No. W501)
for how to check the I/O allocation status. Also, refer to the relevant manuals for specific Units for the maximum I/O data size per NX Unit.
Item
Maximum number of NX Units that
can be mounted to the CPU Unit
Maximum I/O data size that can be
allocated in the CPU Unit
Model
Power OFF detection time
Machine Automation Controller
12 11
IEC 61158 Type12
Class B (Feature Pack Motion Control compliant)
100BASE-TX
Baseband
100 Mbps (100BASE-TX)
Auto
Line, daisy chain, branching and ring *
Twisted-pair cable of category 5 or higher (double-shielded straight cable with alu-
minum tape and braiding)
100 m
64
1 to 192
Input: 5,736 bytes
Output: 5,736 bytes * 13
Input: 1,434 bytes
Output: 1,434 bytes
1,000 to 32,000 μs (in 250-μs increments)
1 μs max.
32
Inputs: 8,192 bytes * 14
Outputs: 8,192 bytes * 14
400
A non-isolated power supply for DC input is built into the CPU Unit.
2 to 8 ms
At ambient temperature of 55°C: -3.5 to 0.5 min error per month
At ambient temperature of 25°C: -1.5 to 1.5 min error per month
At ambient temperature of 0°C: -3 to 1 min error per month
At ambient temperature of 40°C: 10 days
NX102-
10 90
12
NX1
21