Download A3. YFGW710 Field Wireless Integrated Gateway

A4-2
<A4. Field Wireless Network>
A4.2
Wireless System Specification
 Specification of Wireless Transmission
Item
Specification
Wireless Standard
ISA100.11a (conforming to IEEE 802.15.4)
Frequency
2400 MHz-2483.5 MHz
Channel
15
Modulation method
Direct sequence spread spectrum (DSSS)
Wireless Output Power
11.6 dBm (Max.), Fixed
Receiving sensitivity
Less than -95 dBm
Communication Range
Radius of 500 m (Max.)
Raw data rate
250 Kbps
Security
AES128 bit encode
*1
*1: Values in the ideal condition. They change (shorten) depending on the conditions.
 Number of connected devices
Item
Specification
Maximum Connection
Number
Descriptions
4 clients
―
The total number of host-side
devices connected to the
YFGW710 must not exceed
10.
―
OPC Server
PRM
Field wireless configurator
Field wireless management tool
FieldMate
Note: Refer to the next item for the number of connected field wireless devices.
 Number of connected field wireless devices and Publication Period
(Update Time)
When the Update Time of all Field Wireless Device is the same, the maximum connection is
ten devices when Update Time is a second, and the maximum connection is fifty devices when
Update Time is five seconds.
A maximum of two Update Time can be set, and one of them must be longer than 10 seconds
(low speed mode).
Update Time: Group A
Network
Form
Star
Mesh
Update Time: Group B
Update Time A
Number of devices A
Update Time B
Number of devices B
(sec.)
(units)
(sec.)
(units)
1
Max. 5
10 or more
Max. 45
2-4
Max. 10
10 or more
Max. 40
5 or more
Max. 50
10 or more
50 – number of devices A
10 or more
Max. 50
10 or more
50 – number of devices A
IM 01W01F01-01EN