Configuration" Mode; Real-Time Communication" Mode; Ad-Hoc Communication" Mode; Radio Interface - WAGO I/O-SYSTEM 750 Manual

WAGO-I/O-SYSTEM 750
®
750-644 Bluetooth RF-Transceiver
5.1.1

"Configuration" Mode

In "Configuration" mode, all parameters of the 750-644 I/O module are
configured, e.g. via WAGO-I/O-CHECK or function blocks of WAGO-I/O-PRO
CAA. Alternatively, the I/O module can also be configured via the process image
directly. The Mailbox protocol is used for this purpose. A description of all
Mailbox commands is available in the appendix under "Mailbox Commands".
Of particular importance is configuration of the settings that define with which
remote 750-644 I/O modules or remote Bluetooth
connection should be set up. These settings are summarized under the term "Net
Forming" (see section "Function Description" > ... > "Net Forming").
In "Configuration" mode, no data connection is established with remote 750-644
I/O modules or remote Bluetooth
respective slots have the content "0". However, a Bluetooth
to scan for remote 750-644 I/O modules or remote Bluetooth
query to identify the MAC ID and device name.
5.1.2

"Real-Time Communication" Mode

In "Real-Time Communication" mode, the 750-644 I/O module uses a proprietary
real-time profile for radio communication. Operation in this mode has the
following characteristics:
• Automatic connection to and communication with up to 7 other 750-644 I/O
modules
• Cyclical transmission of assigned information of the output process image
(PIO)
• Long ranges are possible
• Deterministic latency and cycle time
• Monitoring the timing using software watchdog
5.1.3

"Ad-hoc Communication" Mode

In "Ad-hoc Communication" mode, the 750-644 I/O module uses the standardized
"Serial Port Profile" (SPP) for radio communication with remote Bluetooth
devices. Operation in this mode has the following characteristics:
Manual connection to and communication with up to 6 remote Bluetooth
•
SPP devices
• Serial transmission of information
• Flow control by handshake bytes (HS bytes)
• Range is determined in each case by the weakest device
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5.2

Radio Interface

The 750-644 I/O module permits wireless exchange of data with remote devices
using version 2.0 of the Bluetooth
The following profiles are supported for communication:
Manual
Version 2.0.0, valid from FW/HW Version 03/03
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SPP devices a radio
®
SPP devices. All process data assigned to the
®
standard.
Function Description
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inquiry can be used
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SPP devices and a
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SPP
37
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