FBM206输出扩充模块
在固件1.30及更高版本中,DIS_功能块将16-从LonWorks网络上的单个节点接收的位字分为16个块输出,用于与其他功能块互连在控制器内。最多可使用6个DIS块,最多限制Lon网络或内存上允许的节点数控制器的限制。块的每次使用将分配一个唯一的全站ID(如DIS02)。输入连接为:通过“绑定”SNVT_state类型的输出变量建立(SNVT#83)到DIS中的网络变量
功能块。当LonWorks选项板安装在352P、353或354N中控制器。
0 NV NUM参数允许查看工作站已分配给输入0。
每个功能块输出具有与其相关的模式。这个模式可以是正常模式或强制模式。使用电脑时能够发送LIL或Modbus命令,模式可以是已更改,强制状态可以指定为高(1)或低(0)
价值通过网络可访问的值是两个交换机:输入(N和F)和SPDT开关的位置,如所示框图。“0”模式为正常模式,“1”为强制模式。
功能块还具有与以下内容相关的质量状态输出:
它当块确定其已失去与Lon节点的通信时,该状态将变为高(1)。功能块执行简单的算术除法。
输出将是两个配置的商输入为N/D。输出将限制在最大值实数,如果除数为0.0,则输出将转到符号由确定的最大实数分子如果分子为0.0,则输出为0。
任何未配置的输入将设置为等于1.0。DNC_功能块为预先选择的输入脉冲数。输出将继续
高(1),输入P的正转变,边缘触发,并将在成功的积极转变。通电-在热启动或热启动期间,最后使用PU设置为“是”,块将保留最后一次计数,并在最后的输入/输出状态。如果设置为“否”,则在温暖或冷启动时,输出和计数将初始化为0。
DIS_ function blocks, in firmware 1.30 and higher, convert a 16-
bit word received from a single node on the LonWorks network
into 16 block outputs for interconnection to other function blocks
within the controller. A maximum of 6 DIS blocks can be used, up
to the limit of nodes allowed on the Lon network or the memory
limit of the controller. Each use of the block will be assigned a
unique station wide ID (e.g. DIS02). Input connections are
established by ‘binding’ the output variable of type SNVT_state
(SNVT #83) in the remote node to the network variable in the DIS
function block. These blocks will be available when the
LonWorks option board is installed in a 352P, 353, or 354N
controller.
The 0 NV NUM parameter enables viewing the number that the
station has assigned to input 0.
Each function block output has a mode associated with it. The
mode can be either NORMAL or FORCED. When using a PC
capable of sending LIL or Modbus commands, the mode can be
changed and the forced state can be assigned a high (1) or low (0)
value. The values accessible over the network are the two switch
inputs (N and F) and the position of the SPDT switch illustrated in
the block diagram. A mode of ‘0’ is Normal and ‘1’ is Forced.
The function block also has a quality status output associated with
it. This status will go high (1) when the block determines it has lost communication with the Lon node DIV_ function blocks perform simple arithmetic division.
The output will be the quotient of the two configured
inputs N/D. The output will be limited to the maximum
real number and, if the divisor is 0.0, the output will go to
the maximum real number with the sign determined by the
numerator. If the numerator is 0.0, the output will be 0.0.
Any unconfigured inputs will be set equal to 1.0. DNC_ function blocks provide a single output pulse for a
pre-selected number of input pulses. The output will go
high (1) with a positive transition of the input P, edge
triggered, and will return to a low (0) output on the
succeeding positive transition. POWER UP - During a hot or a warm start, with PU LAST
set to YES, the block will retain the last count and continue at
the last input/output states. If set to NO, during a warm or a
cold start, the output and count will be initialized to 0.