Instructions

DF1 Protocol Mode 47
Doc: HMSI-27-306, Rev. 3.11Anybus Communicator PROFIBUS User Manual
9.2 Communicator Parameters
Interface
Currently, only serial communication is supported.
Control/Status Word
(See “Control and Status Registers” on page 62).
Module Reset
This parameter specifies how the gateway will behave in the event of a fatal error.
Protocol Mode
This parameter specifies which protocol mode to use for the sub-network.
See also “Protocol Modes” on page 17.
Statistics
The Transmit- and Receive Counters indicate how many transactions that have successfully been ex-
changed on the sub-network. This feature is primarily intended for debugging purposes.
• Receive Counter Location
Specifies the location of the Receive Counter in the internal memory buffer.
• Transmit Counter Location
Specifies the location of the Transmit Counter in the internal memory buffer.
• Statistics
Enables/disables the Receive and Transmit Counters.
Value Description
Enabled Enable the Control and Status Registers. The “Data Valid”-bit in the Control Register must
be set to start the sub-network communication.
Enabled but no startup lock This setting is similar to “Enabled”, except that the control system is not required to set the
“Data Valid”-bit to start the sub-network communication.
Disabled This setting completely disables the Control and Status Registers.
Value Description
Enabled The gateway will be restarted, and no error will be indicated to the user.
Disabled The gateway will halt and indicate an error.
Value Description
DF1 This mode is intended for the DF1 protocol. The Anybus Communicator can only be con-
figured as a Master with half-duplex communication.
Note: This is the only mode available if you intend to configure an ABC module for DF1.