Document type:
Title:
Revision date:
Revision:
User's Manual (MUT)
Mod. N568B/LC 16 Ch Spectroscopy Amplifiers
26/01/2007
4
Filename:
Number of pages:
Page:
N568B_N568LC_REV4.DOC
37
20
Table 4.3: Slave to Master data composition (V288 case)
Order Operation
Address Datum Meaning
1
Read
Base Ad. + 0
Error Code
Error code
2 to 50(*)
Read
Base Ad. + 0
value
Possible Parameter values
(*) The first data of the packet is read and checked by the V288 Control Logic
(see
V288 User's Manual
).
The Error Codes are described in Tab. 4.10.
4.3 USING THE H. S. CAENET CAMAC CONTROLLER
The Mod. N568B/LC can be controlled remotely via CAMAC through the Mod. C 117B H. S. CAENET
CAMAC Controller.
The Model C 117B has been designed to control an H. S. CAENET node through the CAMAC bus. It
houses two memory buffers for the transmitted and received data packet, arranged in a FIFO logic 16
bit wide 256 words deep.
In the memory buffer for the received data are also stored the error messages generated by the
C117B itself when the H. S. CAENET operation has failed (see Table 4.10).
The standard CAMAC functions listed in Table 4.4 allow the User to perform the required control and
setting operations on each Mod. N568B/LC in the network according to the typical MASTER/SLAVE
communication protocol, where the CAMAC controller assumes the MASTER function.
As soon as the data packet (or the error message) is stored in the receive buffer, a LAM signal is
generated (if enabled).
X response is generated for all valid function. Q response is generated for each valid function unless
is otherwise specified (see Table below).
Table 4.4: Mod. C 117 B CAMAC Functions
F(0) N
Reads the data stored in the mod. C 117 B Receive Data buffer. Q response
while the buffer contains data.
F(8) N
Tests the LAM line. Q response if LAM is true.
F(9) N
Resets the module (clears buffer and LAM; disables the LAM line).
F(16) N
Stores the data into the Mod. C 117 B Transmit Data buffer. Q response until
the buffer is full (256 16-bit words).
F(17) N
Transfers data to the serial line.
F(24) N
Disables the LAM line.
F(26) N
Enables the LAM line.
C, Z
Same as F(9) N.