WD30-AT001 Omron, WD30-AT001 Datasheet - Page 138

• Manufacturer Part Number: WD30-AT001
• Description: REMOTE WIRELESS ANTENNA'S DNET
• Manufacturer: Omron

Specifications of WD30-AT001

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: WD30AT001

126
9-1
9-1-1
Remote I/O Communications Performances
Remote I/O Communications Performances
I/O response time
Note
This section describes the performances of remote I/O communications when
the DeviceNet wireless unit is used. Specifying communications timing as cal-
culated is difficult in a wireless network compared to a wire communication
network. Thus, the timings presented here are in accordance with the stan-
dard expressions and the actually measured data resulting from the OMRON
system test. This unit is not applicable for applications requiring real time con-
trol. Instead, use this data as a scale to determine if this unit is applicable to
your need.
The equations provided here are valid under the following conditions:
1. The values provided by these calculations may not be accurate if another
2. This manual only refers to parts related to the wireless unit. For details
The I/O response time is the time it takes from the reception of an input signal
at an Input Slave (REMOTE I/O TERMINAL) to the output of the correspond-
ing output signal at an Output Slave (REMOTE I/O TERMINAL) via the pro-
cess by the ladder program in the PLC module.
Since the wireless master station operates as a DeviceNet slave virtually, and
the wireless slave station operates as the DeviceNet master, also virtually, a
time delay among wireless network is not noticeable in the operation from the
PLC. However, the actual I/O response time depends on the number of wire-
less slave stations, and if relayed, on the number of relay stages due to the
time delay among wireless networks and 1:N polling communication.
The following describes the maximum I/O response time.
• The DeviceNet Master Unit is an OMRON product.
• The Master Unit is operating with the scan list valid mode.
• All of the required wireless slave stations and DeviceNet slaves have
• No errors are being indicated at either the DeviceNet master unit or wire-
• Messages are not being produced in the Network (from another com-
been added in communications.
less units.
pany's configurator, for example).
company’s DeviceNet Master or Slave unit is being used.
about the DeviceNet Master unit or the entire DeviceNet system, refer to
the "DeviceNet User’s Manual", and for details about Slaves, refer to the
"DeviceNet Slave Manual".
Section 9-1