User's Manual

Elpro Technologies 450U-E Wireless Ethernet Modem & Device Server User Manual
82 www.cooperbussmann.com/wirelessresources Rev Version 1.0.12-Beta7
command. The client (or master) should retransmit the message later when
the server (or slave) is free.
65288
FF08
Memory Parity
Error
Specialized, use in conjunction with function codes 20 and 21 and reference
type 6, to indicate that the extended file area failed to pass a consistency
check.
65290
FF0A
Gateway Path
Unavailable
Specialized, use in conjunction with gateways. Indicates that the gateway
was unable to allocate an internal communication path from the input port to
the output port for processing the request. Usually means that the gateway
is misconfigured or overloaded.
65291
FF0B
Gateway Device
Failed to
Respond
Specialized, use in conjunction with gateways. Indicates that no response
was obtained from the target device. Usually means that the device is not
present on the network
65024
FE00
Invalid Response
from Slave
Command type or Slave address did not match request (probably another
unit)
64512
FC00
Server Offline
63488
F800
Invalid Local
Memory Address
Local address invalid in command - Memory location does not exist or is not
initialised.
65535
FFFF
No Response to
the Poll
No response to poll message
Appendix E - Power Conversion
Power Conversion
dBm to mW Conversion
Watts
dBm
Watts
dBm
10 mW
10 dB
200 mW
23 dB
13 mW
11 dB
316 mW
25 dB
16 mW
12 dB
398 mW
26 dB
20 mW
13 dB
500 mW
27 dB
25 mW
14 dB
630 mW
28 dB
32 mW
15 dB
800 mW
29 dB
40 mW
16 dB
1.0 W
30 dB
50 mW
17 dB
1.3 W
31 dB
63 mW
18 dB
1.6 W
32 dB
79 mW
19 dB
2.0 W
33 dB
100 mW
20 dB
2.5 W
34 dB
126 mW
21 dB
3.2 W
35 dB
158 mW
22 dB
4.0 W
36 dB