ProSoft Technology MVI56-BAS - Manual (Page 172)

BASIC CALLs Syntax MVI56-BAS ♦ ControlLogix Platform
User Manual BASIC Module (DB/BAS Compatible)
Page 172 of 234 ProSoft Technology, Inc.
December 13, 2011
Code Mode Communication Parameters
30 Full-Duplex FDM, ADER, Disable DPD, CRC Error Checking
31 Full-Duplex FDM, ADER, Enable DPD, CRC Error Checking
Where:
NHS No Handshaking
HDMwoCC Half-Duplex Modem without Continuous Carrier
HDMwCC Half-Duplex Modem with Continuous Carrier
DPD Duplicate Packet Detection
ER Enable Embedded Responses
ADER Auto-Detect Embedded Response
In order to suppress the end of transmission (EOT) packets for Half-Duplex
Slave, add 32 to each Code (0 to 11) listed above. For example, to configure
PRT2 as Half-Duplex Slave, NHS, Enable DPD, CRC error checking and without
EOT use code 35 instead of 3.
B = Poll Time out (Half-Duplex Slave) or Acknowledgement Time-Out (Full-Duplex): This
parameter is expressed as 5 ms increments and can assume values in the range 2 to 65535.
C = Message Retries (Half-Duplex Slave) or ENQuiry Retries (Full-Duplex): The value entered
should be between 0 and 254.
D = RTS On Delay Time period (Half-Duplex Slave) or Number of NAK Retries (Full-Duplex
Mode): RTS On Delay is expressed as 5ms increments and values in the range 0 to 65535
are accepted. If using NAK Retries values between 0 to 254 are accepted.
E = RTS Off Delay (only used for Half-Duplex Mode): If used for Full-Duplex the value will be
ignored but still must be PUSHed. Values are accepted within 0 to 65499 range.
F = DF1 address: This parameter specifies the BASIC module address that the DF1 driver
responds to when receiving enquires from a remote DF1 device.
Example:
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90 PUSH 5,200,2,4,4,10: CALL 108
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