WH Münzprüfer Dietmar Trenner GmbH, Germany
Technical Manual EMP 500 v7 /CLB
version 2.7
EMP 500 v7 /CLB
subject to technical modification
page 47/62
4.4.
ccTalk Interface
The EMP 500 v7 /CLB uses a ccTalk standard protocol
(www.cctalk.org Version 4.2). The hardware interface does
not satisfy the standard. The voltage levels and currents have
to be checked against the limits and the other side has to be
implemented accordingly.
Coin selector selectors to be used with the ccTalk interface have to be set
to MDB. The coin selector recognises automatically the active protocol of
the connected controller.
After each “Reset” the coin selector will be set automatically
to either MDB or ccTalk communication depending on the first
command received from the host. The first command may only
be sent after the “
start-up
period” of 20
milliseconds.
4.4.1.
Command Overview
H
eader
Function
Answer, data and remarks
254
Simple poll
Answer with ACK
253
Address poll
MDCES support acc. to
specification
252
Address clash
MDCES support acc. to
specification
251
Address change
MDCES support acc. to
specification
250
Address random
MDCES support acc. to
specification
249
Request polling priority [002][020] = 10ms × 20 = 200ms
248
Request status
[000] = OK
[001] = reject activated
[002] = coin-on-a-string
manipulation
247
Request variable set
2 Byte customer identification
(wh specific)
246
Request manufacturer
id
‚WHM’
245
Request equipment
category id
‚Coin Acceptor’
244
Request product code
‚EMP’
243
Request database
version
[000] = no remote programming
via ccTalk
242
Request serial number
[032][003][000]
241
Request software
revision
‚EMP
-
V4.29b’ or later version
240
Test solenoids
Bit 0 = acceptance solenoid
Bit 1 = solenoid 1
Bit 2 = solenoid 2
Bit 3 = solenoid 3
activated for 500ms
