Renishaw PH10 Installation Guide download pdf (Page 29)

RS232 serial communications

4.3.1 Basic command set mode

In this mode the PHC10-2 is fully compatible with existing integration methods in terms of

communications protocols, software command set and RS232 protocol options.

To select the basic command set mode and protocol, set switch 9 (command set selection) DOWN.

When this mode is chosen, the following protocol options are available (table 4).

Table 4 - Basic command set protocol

Switch Position Selection

UP 2 stop bits

DOWN 1 stop bit

UP CTS (Clear To Send) ON

DOWN CTS (Clear To Send) OFF

UP LF (Line Feed) ON

DOWN LF (Line Feed) OFF

NOTE: Switches 6, 7 and 8 have no effect when switch 9 is UP.

Data transmission format is as follows:

1 start bit

7 data bits

1 parity bit (ignored on Rx: always 0 on Tx)

1 or 2 stop bits (switch 6)

Protocols:

PHC10-2 RTS is asserted before ﬁrst transmission from the head and remains asserted. If switch 7

is UP, CTS must be asserted by the CMM computer to allow the head to transmit. If switch 8 is UP,

the PHC10-2 will add an ASCII LF character to every transmitted message.

4.3.2 Extended command set mode

In this mode the PHC10-2 uses the Renishaw extended command set. It is completely different from and

incompatible with the basic command set. The RS232 protocol is ﬁxed with no user selectable options

other than baud rate (see section 4.2).

NOTE: The extended command set has not been implemented on the IEEE version of the PHC10-2.

1 2 ... 24 25 26 27 28 29 30 31 32 33 34 ... 73 74

No comments

Renishaw PH10 Installation Guide Page 29