Appendix A - ABB SLTA Option Card Serial LonTalk Technical Reference Manual

SLTA Option Card
20
Serial LonTalk™ Adapter
Technical Reference Manual

Appendix A

Default values of communication parameters and buffers for the SLTA option card.
These values are set during manufacturing and they are stored in the EEPROM
memory of the Neuron chip. The values may be read and written over the
L W network using Read Memory and Write Memory network management
ON ORKS
messages addressed to the SLTA option card (for more details see L
Technology Device Data chapter A6: The configuration structure).
Table 1: Configuration structure fields and values programmed
during manufacturing
Field of a structure
channel_id
location
comm_clock
input_clock
comm_type
comm_pin_dir
preamble_length
packet_cycle
beta2_control
xmit_interpacket
recv_interpacket
node_priority
channel_priorities
collision_detect
bit_sync_threshold
filter
hysteresis
cd_to_end_packet
cd_tail
cd_preamble
non_group_timer
nm_auth
preemption timeout
Table 2: Buffer settings
Rcv transaction count
App buf out size
App buf in size
Net buf out size
Net buf in size
Net buf priority count
App buf priority count
App buf out count
App buf in count
Net buf out count
Net buf in count
Value Offset / # of bits Remarks
0x0000 0x0016 / 16
0 0x02 / 6*8
0 0x08 / 5
5 / 3
1 0x09 / 3
0x0E / 5
6 0x0A / 8
4 0x0B / 8
0 0x0C / 8
0 0x0D / 8
0 0x0E / 8
0 0x0F / 8
30 0x10 / 8
1 0x11 / 1
0 / 2
0 / 2
0 / 3
1 0x12 / 6
1 / 1
0 / 1
0 0x18 / 4
0 / 1
5 / 3
7
66
66
66
66
5
5
15
191
15
127
1MRS 750107-MUM
W
ON ORKS
set during installation
= input_clock / 8: 1,25 Mbit/s
= 10 Mhz
= single_ended
= dir.mode - single_ended
= 240 µs
= 4 ms
= no priority slot allocated
number of priority slots
= enabled
= number of bits: 4
= 128 ms
= no authentication
= 10 sec
ABB Automation