ProSoft Technology 5201-DFNT-104C - Manual (Page 72)

Mailbox Feature (x201-DFNT-104C) 104C Version 3 ♦ ProLinx Gateway
Protocol Manual IEC 60870-5-104 Client (Firmware v3.xx)
Page 72 of 139 ProSoft Technology, Inc.
August 4, 2011
4.2 Command Control Block Mailbox (9902)
This mailbox allows the remote Ethernet /IP device to dynamically enable for one
time a 104C configured command that is disabled. Up to 60 commands can be
enabled simultaneously in one block.
Mailbox Request
Word Offset
in Block Data Field(s) Description
0 Mailbox ID This field contains the value of -9902 or 9902
identifying the enable command to the module.
1 Command count This field contains the number of commands to
enable in the command list. Valid values for this
field are 1 to 60.
2 to 61 Command
Numbers to
enable These 60 words of data contain the command
numbers in the command list to enable. The
commands in the list will be placed in the
command queue for immediate processing by
the module. The first command in the list has
an index of 0.
62 Spare Not Used
63 Mailbox ID This field contains the value of -9902 or 9902
identifying the enable command to the module.
Mailbox Response
Word Offset
in Block Data Field(s) Description
0 Mailbox ID This field contains the value of -9902 or 9902
identifying the enable command to the module.
1 Command count This field contains the number of commands
added to the command queue.
2 to 62 Spare Not Used
63 Mailbox ID This field contains the value of -9902 or 9902
identifying the enable command to the module.