ACR Electronics FPR-10 PROGRAMMER Manuale Pagina 165

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Parker Hannifin
Additional Features 165
Communication
The Axis connectors provide an RS-485 communication interface to
the drive through the COM2 port. Parker drives supporting Drive Talk
automatically detect RS-232/485 on power up; therefore, the drives
must be connected to ACR series controller before being powered
up. Otherwise, the drives set the communication interface as RS-232.
Parameters and Bits
Drive Talk uses the following parameters and bits:
P28672–P28672 Drive Talk Parameters
Bit8960–Bit9455 Drive Talk Error-Log Flags
Bit9472–Bit9983 Drive Talk Drive-Status 1 Flags
Bit9984–10495 Drive Talk Drive-Status 2 Flags
Bit10496–Bit11007 Drive Talk Drive-Control Flags
Bit 11040–Bit11071 Stream Flags for Drive Talk—LPT1
Bit11072–Bit11103 Stream Flags for Drive Talk—COM1
Bit11104–Bit11135 Stream Flags for Drive Talk—COM2
Bit11168–Bit11199 DPCB/Stream 3 Flags for Drive Talk
Bit11200–Bit11231 Stream 4 Flags for Drive Talk
Bit11232–Bit11263 Stream 5 Flags for Drive Talk
Auto-Addressing
You can have the controller automatically assign address numbers
to drives that are connected and use the Drive Talk feature.
By default, auto-addressing is disabled. When enabled, an ACR
controller assigns addresses only to the Aries drives connected and
powered up.
For all Aries drives, the default address is zero—zero represents a
non-address to the drive. Therefore, the first acceptable address is
one.
The ACR controllers assigns each drive an address relative to the axis
to which the drive is connected. As the numbering for controller
axes begins with zero and the drives cannot accept an address of
zero, the addressing scheme is “off” by one. This is best illustrated
through an example.
For example, you have a eight axis ACR controller, and axes 0, 1, 4,
and 7 are connected to drives with the Drive Talk feature. The auto-
address sequence is as follows: the drive connected to axis 0 is
assigned address “1”; the drive connected to axis 1 is assigned
address “2”; the drive connected to axis 4 is assigned address “5”;
and the drive connected to axis 7 is assigned address “8”.
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